Perhaps you should try some spelling variations:
"synthesise" » "synthesises", "synthesis", "synthesized"
"synthesised" » "synthesisesd", "synthesisd", "synthesizedd", "synthesized", "synthesises", "synthesis"
"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: ((("synthesise" OR "synthesised") OR "synthesisdr") OR "synthesize").
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((\"synthesise\" OR \"synthesised\") or \"synthesisdr\") or \"synthesize\")".
• Removing quotes may allow a broader search: ((( synthesise OR synthesised ) or synthesisdr ) or synthesize ).
• Adding a wildcard symbol may retrieve word variants: ((("synthesise" OR "synthesised") or "synthesisdr") or "synthesize")*.