Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
cua thang » cua thanh, xua thang, cua thuong
anh tang » anh bang, anh dang, anh nang
cua hang » cua dang, cua nhung, cua cong
cong dan » cong san, cong tan, huong dan
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: theo tieu xanh - anh tang ((cua thang) OR (cua hang)) cong dan ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - anh tang ((cua thang) OR (cua hang)) cong dan ((toan cau) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - anh tang ((cua thang) OR (cua hang)) cong dan ((toan cau) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - anh tang ((cua thang) OR (cua hang)) cong dan ((toan cau) or (toan ban))*.