Perhaps you should try some spelling variations:
thanh chuong » thanh huong, nhanh chong, thanh hung
nhung cong » dung cong, thong cong, hang cong
cam nhung » cam hung, nam nhung, tham nhung
san thanh » ban thanh, van thanh, dan thanh
son thanh » ban thanh, van thanh
hoc hieu » hoc thieu, hoc hien, doc hieu
hieu luc » hieu luat, hieu qua

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu luc - ((thanh chuong) OR (thanh cong)) cam nhung cong ((san thanh) or (son thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu luc - ((thanh chuong) OR (thanh cong)) cam nhung cong ((san thanh) OR (son thanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hieu luc - ((thanh chuong) OR (thanh cong)) cam nhung cong ((san thanh) or (son thanh)) cau".
• Adding a wildcard symbol may retrieve word variants: hoc hieu luc - ((thanh chuong) OR (thanh cong)) cam nhung cong ((san thanh) or (son thanh)) cau*.