Perhaps you should try some spelling variations:
wang liang » wang yang
liang wang » liang dan, liang tan, liang ying
gang minh » sang minh, kang minah, anh minh
cong du » cong shu, cong sun
long du » long d, long do, long run
yan di » yang di, pan di, ryan die
yan zi » yan zhi, yuan zi, ban zi

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

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