Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, theo chu, thi chieu
trung cap » truong cao, trung tam
dang cong » dung cong
tong cong » trong cong, cong cong, dung cong
ho chieu » hoc thieu, doi chieu, mot chieu
dan can » dan chan, dan canh, dan ca
can cau » van cau, ban cau, ca cau

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 - thanh trung cap ((dang cong) or (tong cong)) dan can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sach - thanh trung cap ((dang cong) OR (tong cong)) dan can cau.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (ho chieu)) sach - thanh trung cap ((dang cong) or (tong cong)) dan can cau*.