diff --git a/Plugins/Wox.Plugin.Everything/Main.cs b/Plugins/Wox.Plugin.Everything/Main.cs
index ce0d01a8f..a5ad006d4 100644
--- a/Plugins/Wox.Plugin.Everything/Main.cs
+++ b/Plugins/Wox.Plugin.Everything/Main.cs
@@ -16,7 +16,8 @@ namespace Wox.Plugin.Everything
             var results = new List<Result>();
             if (query.ActionParameters.Count > 0 && query.ActionParameters[0].Length > 0)
             {
-                IEnumerable<string> enumerable = api.Search(query.ActionParameters[0], 0, 100);
+                var keyword = string.Join(" ", query.ActionParameters.ToArray());
+                IEnumerable<string> enumerable = api.Search(keyword, 0, 100);
                 foreach (string s in enumerable)
                 {
                     var path = s;
diff --git a/Wox.Plugin.System/Calculator.cs b/Wox.Plugin.System/Calculator.cs
index a1863507a..04ddf7f06 100644
--- a/Wox.Plugin.System/Calculator.cs
+++ b/Wox.Plugin.System/Calculator.cs
@@ -20,6 +20,7 @@ namespace Wox.Plugin.System
                         @"==|~=|&&|\|\||" +
                         @"[ei]|[0-9]|[\+\-\*\/\^\., ""]|[\(\)\|\!\[\]]" +
                         @")+$", RegexOptions.Compiled);
+        private static Regex regHasNumber = new Regex(@"[0-9]", RegexOptions.Compiled);
         private static Regex regBrackets = new Regex(@"[\(\)\[\]]", RegexOptions.Compiled);
         private static ParseContext yampContext = null;
         private PluginInitContext context { get; set; }
@@ -35,6 +36,7 @@ namespace Wox.Plugin.System
         {
             if (string.IsNullOrEmpty(query.RawQuery)
                 || query.RawQuery.Length < 2          // don't affect when user only input "e" or "i" keyword
+                || !regHasNumber.IsMatch(query.RawQuery)  // must has one number
                 || !regValidExpressChar.IsMatch(query.RawQuery) 
                 || !IsBracketComplete(query.RawQuery)) return new List<Result>();