Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh dung » thanh dung, anh dung, manh dung
hanh dong » anh dong, ha dong
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
ban than » ban thanh, van thanh, ban hang
van tan » van tuan, van ban, van tai

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - ((hanh dung) OR (hanh dong)) cua thong cong ((van tan) OR (ban than)) cau~.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((hanh dung) or (hanh dong)) cua thong cong ((van tan) or (ban than)) cau*.