Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
chiet tach » chieu sach
thanh tung » thanh cong
cua nhung » va nhung
cua dang » cua cong, cua ban
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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: hoc ((chieu xanh) or (chiet tach)) - thanh tung ((cua nhung) or (cua dang)) cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chiet tach)) - thanh tung ((cua nhung) OR (cua dang)) cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chiet tach)) - thanh tung ((cua nhung) or (cua dang)) cong tan toan cao*.