How To Display Local Language In TextBox in C#( Winforms)

Question

hi friends..
 
In Winforms, I Had Taken a Textbox..And Copied Some Text Of Local Language From Google Translator and Pasted In That TextBox..
It Is Showing Some Boxes symbols In The Textbox..
 
I need to show The Text of Indian Local language in the textbox that is copied from google translator without any box symbols in textBox..
 
any one please help me...
 
thanks in advance