Perhaps you should try some spelling variations:
thanh dung » thanh duong, thanh tung, thanh hung
cua thong » cua thuong, cua khong, cua tong
thi hieu » thi chieu, thi hien, thi dieu
ho chieu » theo chieu, hoc thieu, doi chieu
dung cua » dung luan, dung cho
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((thi hieu) or (ho chieu)) xanh - thanh dung cua thong ((cong dan) OR (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi hieu) OR (ho chieu)) xanh - thanh dung cua thong ((cong dan) OR (cong san)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thi hieu) or (ho chieu)) xanh - thanh dung cua thong ((cong dan) OR (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: ((thi hieu) or (ho chieu)) xanh - thanh dung cua thong ((cong dan) OR (cong san)) toan cau*.