Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
hanh tranh » canh tranh, hanh trinh, hanh trang
nong thanh » dong thanh, cong thanh, rong thanh
mot chieu » doi chieu, ho chieu
cua nhung » va nhung
cua hang » cua dang, cua cong, cua ban
pho cac » cho cac, tho cac, pho cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (theo chieu)) sach - hanh tranh ((cua hang) OR (cua nhung)) nong thanh pho cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chieu)) sach - hanh tranh ((cua hang) OR (cua nhung)) nong thanh pho cac.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((mot chieu) or (theo chieu)) sach - hanh tranh ((cua hang) OR (cua nhung)) nong thanh pho cac".
• Adding a wildcard symbol may retrieve word variants: ((mot chieu) or (theo chieu)) sach - hanh tranh ((cua hang) OR (cua nhung)) nong thanh pho cac*.