Perhaps you should try some spelling variations:
zhang yan » zhang fan, zhang jian, wang yan
lang yan » wang yan, wang yang, yang yang
yang iii » klang iii, yang zili, zwang iii
iii main » ii main, iii making, iii marine
yang jun » yang jui, pang jun, yang jin
wong sau » wong siu, wong shiu, wong lai
wong sam » wong lai, kong sar, von sam

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 yan) OR (zhang yan)) yang iii main ((yang di) OR (yang jun)) ((wong sau) OR (wong sam)) ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((lang yan) or (zhang yan)) yang iii main ((yang di) or (yang jun)) ((wong sau) OR (wong sam)) ;~".
• Adding a wildcard symbol may retrieve word variants: ((lang yan) or (zhang yan)) yang iii main ((yang di) or (yang jun)) ((wong sau) OR (wong sam)) ;*.