Perhaps you should try some spelling variations:
"online rand research comments" » "online rand research commons", "online rand research contents", "online rand research commentary", "online brand research comments", "online range research comments", "online card research comments", "online band research comments", "online hand research comments"
"online rand search OR random search document" » "online ranked search OR random search document", "online range search OR random search document", "online trend search OR random search document"

Try widening your search to All Fields.

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 ((rand search) OR (random search)) document") OR ("online rand research comments")).
• Removing quotes may allow a broader search: (( online ((rand search) OR (random search)) document ) or ( online rand research comments )).
• Adding a wildcard symbol may retrieve word variants: (("online ((rand search) OR (random search)) document") or ("online rand research comments"))*.