Instantiate a GameObject at a position specific to an element that was found in a text

Hello! I am currently trying to create a chat using Unity. I am trying to instantiate emoticons at the position that the emoticon symbol was found but I am having to luck as of yet. I am correctly identifying the emoticons but I cannot instantiate them at the position the emoticon symbols were found. Please help me! Thank you!

 foreach (string item in EmojiStringList)
 {                  
     if (usr.GetComponentInChildren<Text>().text.Contains(item))
     {
         switch (item)
         {
             case "^_^":
             {
                 usr.GetComponentInChildren<Text>().text.Replace(item, string.Empty);
                 GameObject emo = Instantiate(emoji[0], position, Quaternion.identity) as GameObject;
                 emo.transform.SetParent(usr.transform, false);
                 break;
             }
         }
     }
 }