Perhaps you should try some spelling variations:
"synchronised stemming" » "synchronized stemming", "synchronism stemming", "synchronised streaming", "synchronised steering", "synchronised stepping"
"synchronised flemming" » "synchronized flemming", "synchronism flemming", "synchronised fleming"
"synchronising flemming" » "synchronising fleming", "synchronizing flemming", "synchronism flemming", "synchronisations flemming"
"synchronize swimming" » "synchronized swimming", "synchronism swimming", "synchronizing swimming"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("synchronised stemming") or ((("synchronised flemming") OR ("synchronising flemming"))))) or ("synchronize swimming"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("synchronised stemming") OR ((("synchronised flemming") OR ("synchronising flemming"))))) OR ("synchronize swimming"))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"synchronised stemming\") or (((\"synchronised flemming\") OR (\"synchronising flemming\"))))) or (\"synchronize swimming\"))*".
• Removing quotes may allow a broader search: (((( synchronised stemming ) or ((( synchronised flemming ) OR ( synchronising flemming ))))) or ( synchronize swimming ))*.