Perhaps you should try some spelling variations:
truong thanh » truong trung, truong thpt, truong chung
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh hang » thanh hoang, thanh thang, tranh hang
tieu xanh » tieu danh, dieu hanh, tien anh
cong tan » cong tac, cong san, cong thanh
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: theo ((tieu xanh) OR (chieu xanh)) - thanh hang va nhung ((truong thanh) or (cong tan)) toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((tieu xanh) OR (chieu xanh)) - thanh hang va nhung ((truong thanh) OR (cong tan)) toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((tieu xanh) OR (chieu xanh)) - thanh hang va nhung ((truong thanh) or (cong tan)) toan ban".
• Adding a wildcard symbol may retrieve word variants: theo ((tieu xanh) OR (chieu xanh)) - thanh hang va nhung ((truong thanh) or (cong tan)) toan ban*.