Perhaps you should try some spelling variations:
"synchronised streaming" » "synchronize streaming", "synchronised treating"
"synchronising swimming" » "synchronizing swimming", "synchronisations swimming", "synchronising stemming"
"synchronism swimming" » "synchronism stemming", "synchronize swimming"
"synchronized swimming" » "synchronized 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 streaming") OR ((("synchronising swimming") OR ("synchronism swimming"))))) OR ("synchronized swimming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"synchronised streaming\") OR (((\"synchronising swimming\") OR (\"synchronism swimming\"))))) OR (\"synchronized swimming\"))".
• Removing quotes may allow a broader search: (((( synchronised streaming ) OR ((( synchronising swimming ) OR ( synchronism swimming ))))) OR ( synchronized swimming )).
• Adding a wildcard symbol may retrieve word variants: (((("synchronised streaming") OR ((("synchronising swimming") OR ("synchronism swimming"))))) OR ("synchronized swimming"))*.