Perhaps you should try some spelling variations:
trung thanh » truong thanh
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tan » cong tac, cong san, cong thanh
toan cau » toan cao, toan tap, toan tai
toan ban » van 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 thanh tung ((cong tan) or (truong thpt)) ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh trung thanh tung ((cong tan) OR (truong thpt)) ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - thanh trung thanh tung ((cong tan) or (truong thpt)) ((toan cau) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh trung thanh tung ((cong tan) or (truong thpt)) ((toan cau) OR (toan ban))*.