Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
chieu xanh » chieu sach, chieu sang, chieu tinh
doi chieu » doc hieu, doi chi, ho chieu
dung cong » dung trong
cong danh » cuong danh, cong dan, 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.

• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu xanh - thanh ((truong thanh) OR (trung tam)) dung cong danh ((toan cau) OR (toan ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - thanh ((truong thanh) or (trung tam)) dung cong danh ((toan cau) OR (toan ban))~".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh ((truong thanh) or (trung tam)) dung cong danh ((toan cau) OR (toan ban))*.