Name the search engine and in the next field, put in a short description. Jump down to the keyword field to add words that will direct the search. My example is based on finding copyright free music loops.
What do you want to search? Click the radio button for “Only the sites I select. Select some sites.
Bring up that list of URL addresses you saved and copy them into this field, one address per line. Check the terms box and click next.
On the next page, click the option for “Host the results on a Google page.” Yes, there will some Google advertising, but it will be minimal. While you are on this page, copy and paste the code into a word document for future use.