Perhaps you should try some spelling variations:
research contents » research content, research context, research concepts
search comments » research comments, search commands, search components
online target » online targeting, online trust, marine target
card research » care research, based research
online card » online car, online care, online case

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: (( online target search comments ) OR ( online card research contents )).
• Adding a wildcard symbol may retrieve word variants: (( online target search comments ) or ( online card research contents ))*.