Perhaps you should try some spelling variations:
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua nhung » va nhung
toc hieu » toc thieu, doc hieu, hoc thieu
anh tang » anh bang, anh dang, anh nang
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong san, cong thanh
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: toc hieu manh - anh tang cua nhung ((cong dong) or (cong tan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc hieu manh - anh tang cua nhung ((cong dong) OR (cong tan)) toan tap.
• Adding a wildcard symbol may retrieve word variants: toc hieu manh - anh tang cua nhung ((cong dong) or (cong tan)) toan tap*.