Perhaps you should try some spelling variations:
chieu xanh » chieu sach, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
tung va » trung va, tuong va, dung va

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))) or (chieu tinh)) - thanh tung va nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((((chieu xanh) OR (chieu sang))) OR (chieu tinh)) - thanh tung va nhung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: doi ((((chieu xanh) or (chieu sang))) or (chieu tinh)) - thanh tung va nhung cong tac toan cau*.