Perhaps you should try some spelling variations:
idea transport » ideas transport, sea transport, de transport
transport code » transport mode, transport modes, transport model
vague key » value keys, sage key, vague de
key idea » key ideas, very idea, key item
de based » dge based, de base, code based
de bases » de base, de gases, les bases
code a » code _, code 2

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: (( vague key idea transport code a ) OR ( guias ((de based) OR (de bases)) transfers _ a ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( vague key idea transport code a ) or ( guias ((de based) OR (de bases)) transfers _ a ))~".
• Adding a wildcard symbol may retrieve word variants: (( vague key idea transport code a ) or ( guias ((de based) OR (de bases)) transfers _ a ))*.