Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
hieu van » thien van, lieu va, hieu ve
thanh di » thanh doi, thanh de, thanh do
thuc ban » thuoc ban, thuc dan, thu ban
nam thuc » nam thuoc, am thuc, nam thu
sach ty » sach y, sach thu, xach tay
hieu va » lieu va, hieu qua
sach tu » sach thu, cach tu, sach uu
di cua » dai cua, doi cua, de cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach ty) or (sach tu)) nang x hoi. ((hieu van) or (hieu va)) nam thuc ban thanh di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ty) OR (sach tu)) nang x hoi. ((hieu van) OR (hieu va)) nam thuc ban thanh di cua triet.
• Adding a wildcard symbol may retrieve word variants: thu ((sach ty) or (sach tu)) nang x hoi. ((hieu van) or (hieu va)) nam thuc ban thanh di cua triet*.