Creating the proper Access DB

I am writing a program, where I would like the user to be able to use any of the fields I provide to search for records that correspond, either using only one field, or a any combination of the fields available. I am struggling to figure out how to setup the Access DB for my program to use.

Do I need to set each field to a Primary Key? or can I still do Select * searches on any of the fields whether or not it uses the primary key field or not?

To be more specific, I am new to the whole C++ language and attempting to write a program I am excited about that will help me solidify some of the things I have been learning about C++. However, I am not trying to learn every knuck and cranny of Microsoft Access. I have used it in the past to make very simple DB's, but thought I would turn to the community about how i should approach my above situation.

The fields I have available on the GUI that I would like the user to be able to use either individually or together are:

Title
Description
Language
Type of Code
Application Name

Any help is greatly appreciated.