Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
hieu manh » chieu xanh, hieu nganh, dieu hanh
hang cong » dang cong, hang nong, bang cong
cong tac » cong ty
tung ve » tung le, tung va, trung va
dung ve » dung va, dung he, dung de
tac bao » thac bao, tai bao, tat bao

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu manh) or (chieu sang)) - thanh ((tung ve) or (dung ve)) hang cong tac bao cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu manh) OR (chieu sang)) - thanh ((tung ve) OR (dung ve)) hang cong tac bao cao.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu manh) or (chieu sang)) - thanh ((tung ve) or (dung ve)) hang cong tac bao cao*.