Perhaps you should try some spelling variations:
"online large research documents" » "online large research arguments", "online large research comments", "online large research catchments", "online care research documents", "online change research documents", "online edge research documents", "online target research documents", "nine large research documents", "online merge research documents"
"online rand research contents" » "online rand research content", "online rand research context", "online rand research concepts", "online brand research contents", "online range research contents", "online card research contents", "online band research contents", "online hand research contents"
"online large search document" » "online target search document", "nine large search document", "online merge search document", "online range search document", "online page search document", "online large arch 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 large research documents") OR ("online large search document"))) OR ("online rand research contents")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"online large research documents\") OR (\"online large search document\"))) or (\"online rand research contents\"))".
• Removing quotes may allow a broader search: (((( online large research documents ) OR ( online large search document ))) or ( online rand research contents )).
• Adding a wildcard symbol may retrieve word variants: (((("online large research documents") OR ("online large search document"))) or ("online rand research contents"))*.