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
van thang » van thanh, van khang, van hang
thang cau » hang cau, thong cau, thanh chau
ho chieu » theo chieu, hoc thieu, doi chieu
long van » luong van, song van, lang van

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 van thang 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 van thang cau*.