Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
thong cong » trong cong, tong cong, thong thong
tran dang » tran quang, tran hoang, tranh hang
va thong » va thuong, va phuong, he thong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap
dang va » dang van, dang vat, hang va

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu xanh) or (chieu tinh)) - tran dang va thong cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu xanh) OR (chieu tinh)) - tran dang va thong cong tac toan cao.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu tinh)) - tran dang va thong cong tac toan cao*.