Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
wang tan » wang yan, wang ban, wang dan
long shu » cong shu, tong shui, long du
gong hui » tong hui, tong shui, wang hui
han min » han men, kan min, chan ming
tan yi » tang yi, tan li, tan ying
yi hua » li hua, ya hua, yi hui

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

• Performing a fuzzy search may retrieve terms with similar spellings: wang tan yi hua (ren or rein) ((han min) or (sang minh)) ((long shu) or (gong hui)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wang tan yi hua (ren OR rein) ((han min) OR (sang minh)) ((long shu) OR (gong hui)) ;.
• Adding a wildcard symbol may retrieve word variants: wang tan yi hua (ren or rein) ((han min) or (sang minh)) ((long shu) or (gong hui)) ;*.