Perhaps you should try some spelling variations:
syntheser » synthese, syntheses, synthesen
synthesize » synthesis, synthese
synthesized » synthesisd, synthesed
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: (( syntheser OR (synthesize OR synthesized) ) OR synthesisd ).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( syntheser or (synthesize OR synthesized) ) or synthesisd )".
• Adding a wildcard symbol may retrieve word variants: (( syntheser or (synthesize OR synthesized) ) or synthesisd )*.