Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
manh tung » manh hung, thanh tung
cua nhung » va nhung
qua nhung » quan nhung, qua chung, chua nhung
doc hieu » toc thieu, hoc thieu, hoc hien
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - manh tung ((cua nhung) or (qua nhung)) cong san toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - manh tung ((cua nhung) OR (qua nhung)) cong san toan tap.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - manh tung ((cua nhung) or (qua nhung)) cong san toan tap*.