Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hang cong » dang cong, hang nong, bang cong
ho chieu » hoc thieu, doi chieu, mot chieu
hang ban » hang luan, hang va, hang tai
cong dan » cong san, cong tan, huong dan
va hang » van hang, va nang, va lang
chan tu » phan tu, han tu, chon tu
cho tu » choi tu, chon tu, cho cu

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) OR (ho chieu)) sach - hang ban va hang cong dan ((chan tu) or (cho tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sach - hang ban va hang cong dan ((chan tu) OR (cho tu))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) sach - hang ban va hang cong dan ((chan tu) or (cho tu))*".