Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
hieu manh » chieu xanh, hieu nganh, dieu hanh
manh toan » thanh toan, anh tuan, tinh toan
toc hieu » toc thieu, doc hieu, hoc thieu
luan han » luan hoan, luan phan, luan van
han cong » phan cong, hang cong, hanh cong
dan than » dan chan, ban than, van than

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc hieu manh - thanh dung luan han cong ((dan than) or (manh toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu manh - thanh dung luan han cong ((dan than) OR (manh toan)) tap.
• Adding a wildcard symbol may retrieve word variants: toc hieu manh - thanh dung luan han cong ((dan than) or (manh toan)) tap*.