Perhaps you should try some spelling variations:
sang minh » kang minah, anh minh, song min
lang yan » wang yan, wang yang, zhang yan
yan yang » yang yang, yao yang, dan yang
yang hui » yang jui, wang hui, yang muxi
jong min » song min, song ming, cog min
gong min » song min, gong meng, song ming
hui le » hai le, hui li, qui le

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 yang hui le ((sang minh) OR (((jong min) OR (gong min)))) cong shu ;~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "lang yan yang hui le ((sang minh) or (((jong min) OR (gong min)))) cong shu ;~".
• Adding a wildcard symbol may retrieve word variants: lang yan yang hui le ((sang minh) or (((jong min) OR (gong min)))) cong shu ;*.