Perhaps you should try some spelling variations:
"synthesizer" » "synthesizes", "synthesizing", "synthesisr", "syntheser"
"synthesized" » "synthesisd", "synthesed"
"synthesize" » "synthesis", "synthese"
"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: ((("synthesizer" OR "synthesized") OR "synthesize") OR "synthesisd")*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((\"synthesizer\" OR \"synthesized\") or \"synthesize\") or \"synthesisd\")*".
• Removing quotes may allow a broader search: ((( synthesizer OR synthesized ) or synthesize ) or synthesisd )*.