Perhaps you should try some spelling variations:
transfer given » transfers given, transfer file, transfer gene
risk transfer » cash transfer
cost transfer » cast transfer, court transfer, cash transfer
transfer tax » transfer taxes, transfer _
users cost » user cost, user costs, use cost
bus users » gas users, bus use
tax acao » tax act
luis e » luis f, luis c, luis a
e risk » 2 risk, 1 risk

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: (( luis e risk transfer tax acao ) OR ( bus users cost transfer given _ ))~.
• Adding a wildcard symbol may retrieve word variants: (( luis e risk transfer tax acao ) or ( bus users cost transfer given _ ))*.