Perhaps you should try some spelling variations:
gang minh » sang minh, kang minah, anh minh
wang yang » wang liang, wang yanling
congo shu » cong shu
song thin » song shin, song jin, song min
yi gang » ii gang, i gang, li gang
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 yang) or (wang yan)) ((yan di) OR (yan zi)) yi gang minh ((congo shu) or (song thin)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((wang yang) OR (wang yan)) ((yan di) OR (yan zi)) yi gang minh ((congo shu) OR (song thin)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((wang yang) or (wang yan)) ((yan di) OR (yan zi)) yi gang minh ((congo shu) or (song thin)) ;*".