Search box of ms-word...How to ???

Question

Scenario:   a textbox and a listbox attached together

 

Statement:

                  Typing a letter in the textbox will put the word or the hyperlink of the word in the topmost position, nearest to the textbox .

 

Example:

               In textbox typed w ;in the listbox topmost position of the word that contains w as the first letter as "w" will be shown nearest to the textbox or as the topmost word

               Then typed o; in the listbox  the word that contain "wo" as the first and the second letter will be shown nearest to the listbox--topmost-- including other words .

               Then typed "r"; in the listbox the word that contain "wor" as the first, second and the third letter will be at the topmost.

 

This everything  will also include other words.     ------ SORTING WORDS ALPHABETICALLY

 

Please HELP ME TO DO THIS PROGRAMATICALLY....