Perhaps you should try some spelling variations:
connector service » connection service, connection services, connected services
caption services » action services, location services, citation services
actor services » factory services, sector services, action services

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: ((connector service) OR (((actor services) OR (caption services)))).
• Adding a wildcard symbol may retrieve word variants: ((connector service) or (((actor services) or (caption services))))*.