Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chiet tach » chieu sach
luong cong » dung cong, trong cong, cong cong
dua luong » da luong, du luong, duc luong
anh nang » ganh nang, anh bang, anh dang
nang dua » nang du, nang suat, nang quan
cong tac » cong ty
tac phan » tac pham, tai phan, tac phat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((chieu xanh) or (chiet tach)) - anh nang dua luong cong tac phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((chieu xanh) OR (chiet tach)) - anh nang dua luong cong tac phan tu.
• Adding a wildcard symbol may retrieve word variants: ho ((chieu xanh) or (chiet tach)) - anh nang dua luong cong tac phan tu*.