1) Create a Google Account if you don't have one.
2) Log in with your Google account at https://cse.google.com/cse/
3) Click on "Add" to create a new custom search engine.
4) Enter the domains of the web sites you want to search, one per box.
5) Enter a Name for your new search engine.
6) Click "Create" to finish.
Two options for accessing your new CSE are: