Perhaps you should try some spelling variations:
"synthesizer" » "synthesized", "synthesizing", "synthesizedr", "synthesisr", "syntheser"
"synthesizes" » "synthesized", "synthesis", "syntheses", "synthesizeds", "synthesiss"
"synthesizedr" » "synthesized", "synthesizers", "synthesised", "synthesizeddr", "synthesisdr", "synthesedr"
"synthesisdr" » "synthesiser", "synthesisers", "synthesis"
"synthesize" » "synthesized", "synthesis", "synthese"

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 "synthesizes") OR ("synthesizedr" OR "synthesisdr")) OR "synthesize").
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((\"synthesizer\" OR \"synthesizes\") or (\"synthesizedr\" or \"synthesisdr\")) or \"synthesize\")".
• Removing quotes may allow a broader search: ((( synthesizer OR synthesizes ) or ( synthesizedr or synthesisdr )) or synthesize ).
• Adding a wildcard symbol may retrieve word variants: ((("synthesizer" OR "synthesizes") or ("synthesizedr" or "synthesisdr")) or "synthesize")*.