Perhaps you should try some spelling variations:
"synthesizer" » "synthesized", "synthesizes", "synthesizing", "synthesizedr", "synthesisr"
"synthesizess" » "synthesizes", "synthesizers", "synthesized", "synthesizedss", "synthesisss"
"synthese" » "synthesis"
"synthesize" » "synthesized", "synthesis"

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: (("synthesizer" OR ("synthesizess" OR "synthese")) OR "synthesize").
• Removing quotes may allow a broader search: (( synthesizer or ( synthesizess or synthese )) or synthesize ).
• Adding a wildcard symbol may retrieve word variants: (("synthesizer" or ("synthesizess" or "synthese")) or "synthesize")*.