Perhaps you should try some spelling variations:
nhung huong » nhung phuong, nhung tuong, nhung cong
hieu quan » hieu qua, lieu quan, thien quan
thong cua » thong quan, thong tu, huong cua
manh toan » thanh toan, anh tuan, tinh toan
dung cua » dung luan, dung cho
dan toan » van toan, dan than, xuan toan
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu quan - hanh ((thong cua) or (dung cua)) nhung huong ((dan toan) or (manh toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu quan - hanh ((thong cua) OR (dung cua)) nhung huong ((dan toan) OR (manh toan)) cau.
• Adding a wildcard symbol may retrieve word variants: ho hieu quan - hanh ((thong cua) or (dung cua)) nhung huong ((dan toan) or (manh toan)) cau*.