Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
dung cong » dung trong
cong tac » cong ty
tac nang » tac vang, tai nang, tap nang
nang ban » hang ban, nang quan, nang sang
nhan va » nhan tai, nhan dan, nhan tao
va dung » van dung, va duong, vat dung

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (chieu sang)) - doanh nhan va dung cong tac nang ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sang)) - doanh nhan va dung cong tac nang ban*.