Perhaps you should try some spelling variations:
data transfer » cash transfer, heat transfer
china macro » china macau, china marrit
agents case » events case, agencies case, agents claire
ages case » wages case, age case, cases case
luis rdf » luis f, luis de
rdf data » dlf data, imf data
luis a » luis f, luis c

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( luis a _ transfer china macro ) or ( luis rdf data transfer ((agents case) OR (ages case)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( luis a _ transfer china macro ) OR ( luis rdf data transfer ((agents case) OR (ages case)) ))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( luis a _ transfer china macro ) or ( luis rdf data transfer ((agents case) OR (ages case)) ))*".