diff --git a/AIStudio.Wpf.DiagramDesigner/ViewModels/BaseViewModel/DiagramOption.cs b/AIStudio.Wpf.DiagramDesigner/ViewModels/BaseViewModel/DiagramOption.cs
index c097c7d..779d324 100644
--- a/AIStudio.Wpf.DiagramDesigner/ViewModels/BaseViewModel/DiagramOption.cs
+++ b/AIStudio.Wpf.DiagramDesigner/ViewModels/BaseViewModel/DiagramOption.cs
@@ -467,13 +467,13 @@ namespace AIStudio.Wpf.DiagramDesigner
         public Func<KeyEventArgs, bool> Ungroup
         {
             get; set;
-        } = e => e.KeyboardDevice.Modifiers == ModifierKeys.Shift | e.Key == Key.G;
+        } = e => e.KeyboardDevice.Modifiers == ModifierKeys.Shift && e.Key == Key.G;
 
         [Description("Search shortcut (CTRL+F by default)")]
         public Func<KeyEventArgs, bool> Search
         {
             get; set;
-        } = e => e.KeyboardDevice.Modifiers == ModifierKeys.Control | e.Key == Key.F;
+        } = e => e.KeyboardDevice.Modifiers == ModifierKeys.Control && e.Key == Key.F;
 
         [Description("Search Down shortcut (F3 by default)")]
         public Func<KeyEventArgs, bool> SearchDown
@@ -485,19 +485,19 @@ namespace AIStudio.Wpf.DiagramDesigner
         public Func<KeyEventArgs, bool> SearchUp
         {
             get; set;
-        } = e => e.KeyboardDevice.Modifiers == ModifierKeys.Shift | e.Key == Key.F3;
+        } = e => e.KeyboardDevice.Modifiers == ModifierKeys.Shift && e.Key == Key.F3;
 
         [Description("Replace shortcut (Alt+R by default)")]
         public Func<KeyEventArgs, bool> Replace
         {
             get; set;
-        } = e => e.KeyboardDevice.Modifiers == ModifierKeys.Alt | e.Key == Key.R;
+        } = e => e.KeyboardDevice.Modifiers == ModifierKeys.Alt && e.Key == Key.R;
 
         [Description("Replace All shortcut (Alt+A by default)")]
         public Func<KeyEventArgs, bool> ReplaceAll
         {
             get; set;
-        } = e => e.KeyboardDevice.Modifiers == ModifierKeys.Alt | e.Key == Key.A;
+        } = e => e.KeyboardDevice.Modifiers == ModifierKeys.Alt && e.Key == Key.A;
 
         [Description("Next Node (CEnter by default)")]
         public Func<KeyEventArgs, bool> Next