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
tung cong » dung cong, tong cong, truong cong
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
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: doi chieu xanh - thanh ((trung thanh) OR (truong thanh)) tung cong tac toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chieu xanh - thanh ((trung thanh) OR (truong thanh)) tung cong tac toan ban".
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh ((trung thanh) OR (truong thanh)) tung cong tac toan ban*.