Perhaps you should try some spelling variations:
china's transport » africa's transport, india's transport
charge transport » car transport, carbon transport, marine transport
how china's » from china's
transport a » transport _, transport data
de charge » des charges, _ charge, en charge
guias how » guide how

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: (( (guia OR gua) de charge transport sector a ) OR ( guias how china's transport a adocao ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( (guia OR gua) de charge transport sector a ) or ( guias how china's transport a adocao ))~".
• Adding a wildcard symbol may retrieve word variants: (( (guia OR gua) de charge transport sector a ) or ( guias how china's transport a adocao ))*.