Perhaps you should try some spelling variations:
"online menuband research instruments" » "online menuband research instrument", "online menuband research instrumentation", "online menuband research environments", "online england research instruments", "online demand research instruments", "online enabled research instruments"
"online sand research contents" » "online sand research content", "online sand research context", "online sand research concepts", "online sands research contents", "online rand research contents", "online land research contents", "online sind research contents", "online sale research contents", "online sao research contents"
"online rand search agent" » "online brand search agent", "online band search agent", "online hand search agent", "online random search agent", "online ranked search agent", "online rand research agent", "online rand search agents"

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 sand research contents") OR ((("online rand search agent") OR ("online menuband research instruments")))).
• Removing quotes may allow a broader search: (( online sand research contents ) or ((( online rand search agent ) or ( online menuband research instruments )))).
• Adding a wildcard symbol may retrieve word variants: (("online sand research contents") or ((("online rand search agent") or ("online menuband research instruments"))))*.