Display in proper way?

Question

Hello to all ,
I need your help........
In my application(C# window form) I have applied functionality for searching various string(form text) which are the combination of characters and math symbols.The user enters any string in textbox and that string matches with text property of forms.It matches for about 60-70%.And all the string which matches 60-70% with the textbox string,  form text of matched string appears in search result(listview). 
Now for varoius symbols like squareroot, cuberoot , fraction, exponent, power,we cannot enter them directly from keyboard.So I have made form text in such a way so that user do not find it difficult to enter these symbols.
For this I have made a toolbar in my application. Like , for squareroot there is sqrt() , for cuberoot there is cuberoot() and so on .
Also to ignore the problem of whitespacing while matching the two strings, i have entered form text without spacing.
But the problem is that when user enters any string and searches it ,the search results appears in such a way which are not easily understandable by the user and user could not find required string (result).
Can you tell me some way or idea for how to display the result that user can understand it and could easily find the required string.
All suggestions are appreciated...
Kindly help me...........