Perhaps you should try some spelling variations:
carrier david » carter david, currie david, archer david
parker david » aaker david, tarr david, hauner david
gang yao » yang yao, wang yan, ganga ya
yao yang » yang yang
yang jun » yang jui, pang jun, yang jin
hong hai » shang hai, zhong tai, dang hai
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 yao yang jun 7d ((carrier david) OR (parker david)) ((hong hai) OR (young 4)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "gang yao yang jun 7d ((carrier david) OR (parker david)) ((hong hai) or (young 4)) ;~".
• Adding a wildcard symbol may retrieve word variants: gang yao yang jun 7d ((carrier david) OR (parker david)) ((hong hai) or (young 4)) ;*.