Perhaps you should try some spelling variations:
"online rand research advancements" » "online rand research advances", "online rand recent advancements", "online rand research achievements", "online brand research advancements", "online range research advancements", "online card research advancements", "online band research advancements", "online hand research advancements"
"online trend search document" » "online trends search document", "spline trend search document", "online end search document", "online trend research document", "online tree search document", "online trends research document"
"online range search document" » "online change search document", "online ring search document", "nonlinear range search document", "online range searching document", "online random search document", "online image search document"
"online rand search document" » "online brand search document", "online band search document", "online hand search document", "online random search document", "online ranked search document", "online paid search document"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("online rand research advancements") OR ((((("online rand search document") OR ("online trend search document"))) OR ("online range search document")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"online rand research advancements\") or (((((\"online rand search document\") OR (\"online trend search document\"))) or (\"online range search document\"))))".
• Removing quotes may allow a broader search: (( online rand research advancements ) or ((((( online rand search document ) OR ( online trend search document ))) or ( online range search document )))).
• Adding a wildcard symbol may retrieve word variants: (("online rand research advancements") or ((((("online rand search document") OR ("online trend search document"))) or ("online range search document"))))*.