Perhaps you should try some spelling variations:
wang yidan » wang yan
minh long » minh cong, vinh long
yang jie » yang jin, yang di, yang xi
yang jui » yang judy, yang di, yang xi
yi gang » ii gang, i gang, yi yang
li gang » liu gang, ii gang, i gang
yu yang » du yang, yi yang, yu fang
long du » long d, long do, long run

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang yidan ((yang jie) or (yang jui)) ((((yi gang) OR (li gang))) or (yu yang)) minh long du ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang yidan ((yang jie) OR (yang jui)) ((((yi gang) OR (li gang))) OR (yu yang)) minh long du ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wang yidan ((yang jie) or (yang jui)) ((((yi gang) OR (li gang))) or (yu yang)) minh long du ;*".