Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
cong thanh » dong thanh, cong trinh, cong tan
hang cong » dang cong, hang nong, bang cong
thanh can » thanh san, thanh van, thanh tan
ho chieu » hoc thieu, doi chieu, mot chieu
hang tai » hang va, dung tai
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: ((ho chieu) or (theo chieu)) sach - hanh ((nang cao) or (hang tai)) hang cong thanh can cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chieu)) sach - hanh ((nang cao) OR (hang tai)) hang cong thanh can cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chieu)) sach - hanh ((nang cao) or (hang tai)) hang cong thanh can cau*.