Perhaps you should try some spelling variations:
"synchronised stemming" » "synchronized stemming", "synchronised steering", "synchronised stepping", "synchronised stealing"
"synchronised streaming" » "synchronized streaming", "synchronised treating"
"synchronised flemming" » "synchronized flemming", "synchronised fleming"
"synchronism stemming" » "synchronism steering", "synchronism stepping", "synchronism stealing", "synchronized stemming"
"synchronising flemming" » "synchronising fleming", "synchronizing flemming", "synchronisations flemming"
"synchronize swimming" » "synchronized 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 ("synchronism stemming"))) or ("synchronised streaming"))) 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 ("synchronism stemming"))) OR ("synchronised streaming"))) 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 (\"synchronism stemming\"))) or (\"synchronised streaming\"))) or (((\"synchronised flemming\") OR (\"synchronising flemming\"))))) or (\"synchronize swimming\"))".
• Removing quotes may allow a broader search: (((((((( synchronised stemming ) or ( synchronism stemming ))) or ( synchronised streaming ))) or ((( synchronised flemming ) OR ( synchronising flemming ))))) or ( synchronize swimming )).
• Adding a wildcard symbol may retrieve word variants: (((((((("synchronised stemming") or ("synchronism stemming"))) or ("synchronised streaming"))) or ((("synchronised flemming") OR ("synchronising flemming"))))) or ("synchronize swimming"))*.