Perhaps you should try some spelling variations:
carrier david » carter david, currie david, parker david
7d carrier » _ carrier
gang yang » wang yang, huang yang, wang yan
yang yang » wang yang, wang yan
yang july » yang judy, yang jui, yang jun
hong hai » shang hai, zhong tai, dang hai
july 7d » july 7
young 4 » young _, young 5, young 6

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

• If you are trying to use Boolean operators, they must be ALL CAPS: gang yang yang july 7d carrier david ((hong hai) OR (young 4)) ;~.
• Adding a wildcard symbol may retrieve word variants: gang yang yang july 7d carrier david ((hong hai) or (young 4)) ;*.