diff --git a/src/Purrse.Api/Services/TransactionService.cs b/src/Purrse.Api/Services/TransactionService.cs
index d90ab6f..c951fe5 100644
--- a/src/Purrse.Api/Services/TransactionService.cs
+++ b/src/Purrse.Api/Services/TransactionService.cs
@@ -158,12 +158,12 @@ public class TransactionService : ITransactionService
         if (request.Status.HasValue)
             query = query.Where(t => t.Status == request.Status.Value);
         if (!string.IsNullOrEmpty(request.PayeeName))
-            query = query.Where(t => t.PayeeName != null && t.PayeeName.Contains(request.PayeeName));
+            query = query.Where(t => t.PayeeName != null && EF.Functions.ILike(t.PayeeName, $"%{request.PayeeName}%"));
         if (!string.IsNullOrEmpty(request.SearchText))
             query = query.Where(t =>
-                (t.PayeeName != null && t.PayeeName.Contains(request.SearchText)) ||
-                (t.Memo != null && t.Memo.Contains(request.SearchText)) ||
-                (t.ReferenceNumber != null && t.ReferenceNumber.Contains(request.SearchText)));
+                (t.PayeeName != null && EF.Functions.ILike(t.PayeeName, $"%{request.SearchText}%")) ||
+                (t.Memo != null && EF.Functions.ILike(t.Memo, $"%{request.SearchText}%")) ||
+                (t.ReferenceNumber != null && EF.Functions.ILike(t.ReferenceNumber, $"%{request.SearchText}%")));
 
         query = query.OrderByDescending(t => t.Date).ThenByDescending(t => t.CreatedAt);