使用绑定的CheckBoxList进行sql搜索查询

I have a checkboxlist on my asp webpage which lists a number of skills required for a project. What i wish to do is to check multiple items from this checkboxlist and then create a search function to list all users who have the relevant skill to the ones checked. I can kinda get this to work, but instead of showing all users, it only shows one user.I have a checkboxlist on my asp webpage which l