Perhaps you should try some spelling variations:
power transformers » power transformer, pour transformer, power transforming
gas transport » mass transport, bus transport, car transport
transport em » transport en, transport et, transport amp
guide de » guide _, guide a, guide 1
de power » de poder, me power, dwde power
4.3 can » 2.3 can, 4.3 clean, 4.3 case
luis c » luis f
c gas » _ gas, c das, 2 gas

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( luis c gas transport em acao ) or ( guide de power transformers ((4.3 can) or (4.3 cnn)) ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( luis c gas transport em acao ) OR ( guide de power transformers ((4.3 can) OR (4.3 cnn)) )).
• Adding a wildcard symbol may retrieve word variants: (( luis c gas transport em acao ) or ( guide de power transformers ((4.3 can) or (4.3 cnn)) ))*.