Perhaps you should try some spelling variations:
thanh hang » thanh hoang, thanh thang, tranh hang
thanh hung » thanh huong, thanh tung, thanh trung
theo hieu » theo chieu, theo tieu, thien hieu
hieu lang » chieu sang, hieu quang, nhieu tang
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
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 hieu lang - ((thanh hang) or (thanh hung)) cua dung cong san ((toan cau) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo hieu lang - ((thanh hang) OR (thanh hung)) cua dung cong san ((toan cau) OR (toan ban))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo hieu lang - ((thanh hang) or (thanh hung)) cua dung cong san ((toan cau) OR (toan ban))*".