Perhaps you should try some spelling variations:
\"synchronised » \"synchronism, \"synchronising
\"synchronizingd » \"synchronizing, \"synchronising
\"synchronismd » \"synchronism, \"synchronising
swimming\" » stemming\"
\"synchronized » \"synchronismd, \"synchronizingd
\"synchronize » \"synchronism, \"synchronizing

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "\"(((\\"synchronised or ((\\"synchronized OR \\"synchronizingd) or \\"synchronismd)) swimming\\") or (\\"synchronize swimming\\"))\"".
• Removing quotes may allow a broader search: ((( synchronised or (( synchronized OR synchronizingd) or synchronismd)) swimming ) or ( synchronize swimming )).