Perhaps you should try some spelling variations:
synthesisdr » synthesiser, synthesisers, synthesis, synthesisedr, synthesisr
synthesize » synthesized, synthesis
synthese » synthesis
synthesisd » synthesised, synthesis, synthesise

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: (( synthesisdr OR (synthesize OR synthese) ) OR synthesisd ).
• Adding a wildcard symbol may retrieve word variants: (( synthesisdr or (synthesize or synthese) ) or synthesisd )*.