Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh trang » thanh trung, canh tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
thi chien » thi hien, thi thien, thien chien
ho chieu » hoc thieu, doi chieu, mot chieu
trang va » tran van, hang va
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap

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) or (thi chien)))) sach - hanh trang va nhung cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (((theo chieu) OR (thi chien)))) sach - hanh trang va nhung cong san toan cao.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (((theo chieu) or (thi chien)))) sach - hanh trang va nhung cong san toan cao*.