Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
trung tuan » trung thanh, tran tuan, truong thanh
hang cong » dang cong, hang nong, bang cong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu xanh) or (chieu sang)) - thanh ((trung tuan) OR (trung tam)) hang cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu xanh) OR (chieu sang)) - thanh ((trung tuan) OR (trung tam)) hang cong tac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu xanh) or (chieu sang)) - thanh ((trung tuan) OR (trung tam)) hang cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu xanh) or (chieu sang)) - thanh ((trung tuan) OR (trung tam)) hang cong tac toan cao*.