Perhaps you should try some spelling variations:
transfer agents » transfer payments, transfer amounts, transfer payment
den transfer » gene transfer, heat transfer, data transfer
cases based » case based, cables based, scales based
transfer a » transfer _, transfer 3, transfer 4
aes based » ses based, areas based, games based
agents a » agents _, agents 3, agents 5
a do » a dot, _ do, a d

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( values _ den transfer agents a ) OR ( guias ((aes based) OR (cases based)) transfer a do ))~".
• Adding a wildcard symbol may retrieve word variants: (( values _ den transfer agents a ) OR ( guias ((aes based) OR (cases based)) transfer a do ))*.