Perhaps you should try some spelling variations:
"online li research comments" » "online li research commons", "online li research contents", "online li research commentary", "online ii research comments", "online i research comments", "online ai research comments", "online life research comments", "online live research comments", "online link research comments"
"online chapter9 research effects" » "online chapter research effects", "online chapter1 research effects", "online chapter5 research effects", "online chapter9 research efforts", "online chapter9 research aspects", "online chapter9 research projects", "online chapters research effects", "engine chapter90 research effects"

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 li research comments") OR ("online chapter9 research effects")).
• Removing quotes may allow a broader search: (( online li research comments ) or ( online chapter9 research effects )).
• Adding a wildcard symbol may retrieve word variants: (("online li research comments") or ("online chapter9 research effects"))*.