Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
hanh manh » hanh mang, lanh manh, hoang manh
tan nhung » tang nhung, ban nhung, san nhung
nhung cau » chung cu, nhung bai, nhu cau
doc hieu » toc thieu, hoc thieu, hoc hien
cua dung » cua dang, cua dong, qua dung
cua nong » cuu nong, cua dong, cua song
cong tan » cong tac, cong san, cong thanh

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 - hanh manh ((cua dung) or (((cua nong) or (cua cong)))) cong tan nhung cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - hanh manh ((cua dung) OR (((cua nong) OR (cua cong)))) cong tan nhung cau.
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - hanh manh ((cua dung) or (((cua nong) or (cua cong)))) cong tan nhung cau*.