Perhaps you should try some spelling variations:
biomass transfer » biomass transport, mass transfer, diseases transfer
22mass transfer » mass transfer, mass transfers, class transfer
pass transfer » mass transfer, mass transfers, gas transfer

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: %((((22mass transfer) OR (pass transfer))) OR (biomass transfer))%22.
• The words AND, OR and NOT may confuse the search; try adding quotes: "%((((22mass transfer) OR (pass transfer))) or (biomass transfer))%22".
• Adding a wildcard symbol may retrieve word variants: %((((22mass transfer) OR (pass transfer))) or (biomass transfer))%22*.