Perhaps you should try some spelling variations:
thanh tuong » thanh thuong, thanh tung, thanh huong
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
nhung cong » dung cong, thong cong, nhung don
hang cong » dang cong, hang nong, bang cong
tuong va » truong va, thuong va, luong va
toan cao » toan tap
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 chieu xanh - thanh tuong va ((nhung cong) or (hang cong)) dan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chieu xanh - thanh tuong va ((nhung cong) OR (hang cong)) dan ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh tuong va ((nhung cong) or (hang cong)) dan ((toan cao) or (toan ban))*.