diff --git a/GrossesMitaines/GrossesMitainesAPI/Controllers/SearchController.cs b/GrossesMitaines/GrossesMitainesAPI/Controllers/SearchController.cs
index 485c05d..d6629d8 100644
--- a/GrossesMitaines/GrossesMitainesAPI/Controllers/SearchController.cs
+++ b/GrossesMitaines/GrossesMitainesAPI/Controllers/SearchController.cs
@@ -13,15 +13,21 @@ namespace GrossesMitainesAPI.Controllers;
 public class SearchController : Controller {
     private readonly ILogger<SearchController> _logger;
     private readonly InventoryContext _context;
+    private static List<Product> _searchCache = new();
+    private static DateTime? _cacheDate; 
 
     public SearchController(ILogger<SearchController> logger, InventoryContext context) {
         _logger = logger;
         _context = context;
+        if (_searchCache.Count == 0 || _cacheDate.HasValue && _cacheDate.Value.AddMinutes(5) < DateTime.Now) { 
+            _searchCache = _context.Products.ToList();
+            _cacheDate = DateTime.Now;
+        }
     }
 
     [EnableCors("_myAllowSpecificOrigins")]
     [HttpPost(Name = "Search")]
-    public IEnumerable<Product> Post(string query, bool? preview) {
+    public IEnumerable<Product> Post(string query, bool? preview, bool? deep) {
         const int PREVIEW = 3;
         List<Product> products = new();
 
@@ -29,21 +35,45 @@ public class SearchController : Controller {
 
         try { // Pour faire une liste priorisée.
             if (preview.HasValue && preview == true)
-                products = _context.Products.Where(x => x.Title.Contains(query)).Take(PREVIEW).ToList();
-            else {
-                products = _context.Products.Where(x => x.Title.Replace(".", " ")
-                                                               .Replace(",", " ")
-                                                               .ToUpper()
-                                                               .Contains(" " + query.ToUpper() + " "))
-                                                               .ToList();
+                //products = _context.Products.Where(x => x.Title.Contains(query)).Take(PREVIEW).ToList();
+                products = _searchCache.Where(x => x.Title.Contains(query)).Take(PREVIEW).ToList();
 
-                foreach (Product prod in _context.Products.Where(x => x.Category.Contains(query)).ToList()) { 
-                    if (!products.Contains(prod))
-                        products.Add(prod);
-                }
-                foreach (Product prod in _context.Products.Where(x => x.Description.Contains(query)).ToList()) {
-                    if (!products.Contains(prod))
-                        products.Add(prod);
+            else {
+                if (deep.HasValue && deep == true) {
+                    List<Product> title = new(), desc = new(), cat = new();
+                    query = query.ToLower();
+
+                  //  foreach (Product prod in _context.Products.ToList()) {
+                      foreach (Product prod in _searchCache) {
+                            string sTitle = prod.Title.Replace(".", " ").Replace(",", " ").ToLower(),
+                               sCat = prod.Category.Replace(".", " ").Replace(",", " ").ToLower(),
+                               sDesc = prod.Description.Replace(".", " ").Replace(",", " ").ToLower();
+
+                        if (sTitle.StartsWith(query))
+                            products.Add(prod);
+                        else if (sTitle.Contains(" " + query + " "))
+                            title.Add(prod);
+                        else if (sDesc.Contains(" " + query + " "))
+                            desc.Add(prod);
+                        else if (sCat.Contains(" " + query + " "))
+                            cat.Add(prod);
+                    }
+                    products.AddRange(title);
+                    products.AddRange(desc);
+                    products.AddRange(cat);
+
+                } else {
+                    //  products = _context.Products.Where(x => x.Title.Contains(query)).ToList();
+                    products = _searchCache.Where(x => x.Title.Contains(query)).ToList();
+
+                    // foreach (Product prod in _context.Products.Where(x => x.Description.Contains(query)).ToList())
+                    foreach (Product prod in _searchCache.Where(x => x.Description.Contains(query)).ToList())
+                        if (!products.Contains(prod))
+                            products.Add(prod);
+                    //  foreach (Product prod in _context.Products.Where(x => x.Category.Contains(query)).ToList())
+                    foreach (Product prod in _searchCache.Where(x => x.Category.Contains(query)).ToList())
+                        if (!products.Contains(prod))
+                            products.Add(prod);
                 }
             }
         } catch (Exception e) {