Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
trung quan » truong quan, trong quan, trung tuan
doi chieu » doc hieu, doi chi, ho chieu
quan dung » quang dung, quan duong, qua dung
cong tan » cong tac, cong san, cong thanh
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) or (theo chieu)) xanh - thanh trung quan dung ((cong tan) or (truong thanh)) toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (theo chieu)) xanh - thanh trung quan dung ((cong tan) OR (truong thanh)) toan cao.
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (theo chieu)) xanh - thanh trung quan dung ((cong tan) or (truong thanh)) toan cao*.