Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, theo chu
canh thanh » canh tranh, danh thanh, anh thanh
thanh chu » thanh chau, thanh cha, thanh thu
bang cong » dang cong, bang song, hang cong
cong bang » cuong bang, dong bang, hong bang
chu bang » thu bang, chuc nang, chu quang
hang cau » hang ca, nhung cau, nang cao
hang dau » hang va, hang tai

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 (hoc hien)) sach - canh thanh chu bang cong bang ((hang cau) or (hang dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (hoc hien)) sach - canh thanh chu bang cong bang ((hang cau) OR (hang dau)).
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (hoc hien)) sach - canh thanh chu bang cong bang ((hang cau) or (hang dau))*.