Perhaps you should try some spelling variations:
tsinh trung » trinh trung, tinh trung, trinh truong
theo chieu » theo tieu, theo chu, thi chieu
thong cong » trong cong, tong cong, thong thong
ho chieu » hoc thieu, doi chieu, mot chieu
va thong » va thuong, va phuong, he thong
cong san » cong tac
san than » sang than, san thanh, ban than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo chieu)) sach - ((sinh trung) or (tsinh trung)) va thong cong san than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sach - ((sinh trung) OR (tsinh trung)) va thong cong san than cap.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) sach - ((sinh trung) or (tsinh trung)) va thong cong san than cap*.