Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cua triet » cua viet, su triet, va triet
hang cau » hang dau, hang ca, nhung cau
thuc ban » thuoc ban, thuc dan, thu ban
thanh di » thanh doi, thanh de, thanh do
tu sach » thu sach, tu cach, vu sach
su sach » so sach, vu sach
te sach » toc sach
ly hang » ly quang
qua am » quan am, qua ap, cua am
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((tu sach) or (su sach))) or (te sach)) ly hang cau hoi. hieu qua am thuc ban thanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sach) OR (su sach))) OR (te sach)) ly hang cau hoi. hieu qua am thuc ban thanh di cua triet.
• Adding a wildcard symbol may retrieve word variants: ((((tu sach) or (su sach))) or (te sach)) ly hang cau hoi. hieu qua am thuc ban thanh di cua triet*.