Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san
khong cong » thong cong, khong cang, chong cong
hien hanh » dieu hanh
hanh tang » hanh trang, anh tang, hanh mang
hua khong » hoa khong, cua khong, hoac khong
tang hua » tang ha, tang cua, tang luan
dan toan » van toan, dan than, manh toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien hanh - hanh tang hua khong cong ((dan toan) or (((thanh toan) or (tinh toan)))) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - hanh tang hua khong cong ((dan toan) OR (((thanh toan) OR (tinh toan)))) cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - hanh tang hua khong cong ((dan toan) or (((thanh toan) or (tinh toan)))) cau*.