Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
cua nhung » va nhung
hoc hieu » hoc thieu, hoc hien, doc hieu
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 cao » toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hieu manh - anh tang cua nhung cong tan ((toan cao) or (((toan ban) or (van ban))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu manh - anh tang cua nhung cong tan ((toan cao) OR (((toan ban) OR (van ban)))).
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - anh tang cua nhung cong tan ((toan cao) or (((toan ban) or (van ban))))*.