Perhaps you should try some spelling variations:
"online card research documents" » "online card research arguments", "online card research comments", "online card research catchments", "online care research documents", "online based research documents", "online car research documents", "online case research documents"
"online hand search document" » "online band search document", "online handel search document", "online brand search document", "online hana search document", "online hard search document", "online add search document"
"online paid search document" » "online part search document", "online path search document", "online page search document", "online grid search document", "online based search document"

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 card research documents") OR ((("online hand search document") OR ("online paid search document"))))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"online card research documents\") or (((\"online hand search document\") OR (\"online paid search document\"))))*".
• Removing quotes may allow a broader search: (( online card research documents ) or ((( online hand search document ) OR ( online paid search document ))))*.