Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trung » thanh trung, hanh trang, manh trung
hieu sang » chieu sang, hieu lang, hieu quang
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
doc hieu » toc thieu, hoc thieu, hoc hien
cong tac » cong ty
than cap » thanh lap, thanh cac, than cua
khan cap » khan ap, khoan cam, phan cac

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 sang - hanh trung cua nhung cong tac ((than cap) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu sang - hanh trung cua nhung cong tac ((than cap) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: doc hieu sang - hanh trung cua nhung cong tac ((than cap) or (khan cap))*.