You cannot 'make' the button do anything
Drag and drop a button on to your form. Double click on it. In the auto generated method, write code to open a connection to your database. Write a SELECT sql statement in which the WHERE clause will contain the criteria you want to search from. Execute that SQL and display it in a datagrid or something.
Sample SQL: SELECT * FROM [MyTable] MT WHERE MT.Name LIKE '%hawkz%'
This SQL will pull all rows of 'MyTable' where 'Name' column contains the string 'hawkz'
Try following these steps and implementing it. It won't be easy for you I guess. But try and post some code that gives an exception or does not work as you hope. Then we'd try and help you figure out where the problem is.
Hope this help you.