Perhaps you should try some spelling variations:
"synthesizer" » "synthesized", "synthesizes", "synthesizing", "synthesizedr", "syntheser"
"synthesizeddr" » "synthesized", "synthesizedand", "synthesizes", "synthesizedddr", "syntheseddr"
"synthesize" » "synthesized", "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 ("synthesizeddr" OR "synthesis")) OR "synthesize").
• Removing quotes may allow a broader search: (( synthesizer or ( synthesizeddr or synthesis )) or synthesize ).
• Adding a wildcard symbol may retrieve word variants: (("synthesizer" or ("synthesizeddr" or "synthesis")) or "synthesize")*.