Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trung » thanh trung, hanh trang, manh trung
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong doan » cong dan, cong hoan, dong doanh
hoc hieu » hoc thieu, hoc hien, doc hieu
phan lap » phan dau

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hieu nganh - hanh trung cua nhung cong doan ((phan tu) OR (phan lap))~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu nganh - hanh trung cua nhung cong doan ((phan tu) or (phan lap))*.