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

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 streaming"))) or ("synchronism stemming"))) or ((("synchronize stemming") OR ("synchronized stemming"))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((((("synchronised stemming") OR ("synchronised streaming"))) OR ("synchronism stemming"))) OR ((("synchronize stemming") OR ("synchronized stemming")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((((\"synchronised stemming\") or (\"synchronised streaming\"))) or (\"synchronism stemming\"))) or (((\"synchronize stemming\") OR (\"synchronized stemming\"))))".
• Removing quotes may allow a broader search: (((((( synchronised stemming ) or ( synchronised streaming ))) or ( synchronism stemming ))) or ((( synchronize stemming ) OR ( synchronized stemming )))).
• Adding a wildcard symbol may retrieve word variants: (((((("synchronised stemming") or ("synchronised streaming"))) or ("synchronism stemming"))) or ((("synchronize stemming") OR ("synchronized stemming"))))*.