Perhaps you should try some spelling variations:
"video reading" » "video streaming", "video recording", "video recordings"
"video gaming" » "video game"
"video mining" » "video training", "video editing"
"video games" » "video james", "video names"

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("video gaming") OR ((("video mining") OR ("video coding"))))) OR ("video reading"))) OR ("video games")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"video gaming\") or (((\"video mining\") OR (\"video coding\"))))) or (\"video reading\"))) or (\"video games\"))".
• Removing quotes may allow a broader search: (((((( video gaming ) or ((( video mining ) OR ( video coding ))))) or ( video reading ))) or ( video games )).
• Adding a wildcard symbol may retrieve word variants: (((((("video gaming") or ((("video mining") OR ("video coding"))))) or ("video reading"))) or ("video games"))*.