Perhaps you should try some spelling variations:
thanh trung » thanh tung
chieu xanh » chieu sach, chieu sang, chieu tinh
trung hoc » trung quoc
ho chieu » theo chieu, hoc thieu, doi chieu
hoc dung » hoc ung, hoc dan, tac dung
cong tan » cong san, cong thanh, cong ty
cong tac » cong ty
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - thanh trung hoc dung ((cong tan) or (cong tac)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh trung hoc dung ((cong tan) OR (cong tac)) toan tap.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh trung hoc dung ((cong tan) or (cong tac)) toan tap*.