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