Perhaps you should try some spelling variations:
parker david » aaker david, tarr david, hauner david
clarke david » clarke daniel, berke david, arte david
mark david » mare davide
young ghi » young choi, hong ghi, young get
lang tan » liang tan, lang lang, tang tang
tan yang » dan yang, tan ying, tan yong
yang i » yang di, yang xi, yang yi
i gene » _ gene, a gene, e gene

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: lang tan yang i gene ((clarke david) OR (((mark david) OR (parker david)))) young ghi ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang tan yang i gene ((clarke david) or (((mark david) OR (parker david)))) young ghi ;~".
• Adding a wildcard symbol may retrieve word variants: lang tan yang i gene ((clarke david) or (((mark david) OR (parker david)))) young ghi ;*.