Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
hanh day » hanh may, han day, hanh dao
te sach » toc sach
sach tu » sach thu, cach tu, sach ty
tu nong » tu dong, tu cong, tu tong
nong xa » song xa, dong xa, nong va
van lam » van nam
truc va » thuc va, thuc vat, trung va
day cua » dai cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach tu nong xa hoi. hieu van lam ((tuc xa) or (truc va)) hanh day cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach tu nong xa hoi. hieu van lam ((tuc xa) OR (truc va)) hanh day cua triet.
• Adding a wildcard symbol may retrieve word variants: te sach tu nong xa hoi. hieu van lam ((tuc xa) or (truc va)) hanh day cua triet*.