Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
trinh luan » trinh luat, trinh quan, trinh han
thi chieu » thi chien, thi hieu, theo chieu
luan tang » luan nang, lan tang, xuan trang
tang long » thang long, tang dong, tang mong
ho chieu » theo chieu, hoc thieu, doi chieu
long dan » long doan, cong dan, nong dan
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thi chieu) or (ho chieu)) sach - canh trinh luan tang long dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi chieu) OR (ho chieu)) sach - canh trinh luan tang long dan than cau*.