Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
su cach » su sach, tu cach, su cac
cach tu » cach thuc
tu nong » tu dong, tu cong, tu tong
hieu va » lieu va, hieu qua
cam duc » cam xuc, cao duc, pham duc
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
nong o » nong do, nong co, dong o
va cam » va cham, va cac, va cao
o hoc » co hoc, mo hoc, so hoc

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cach tu nong o hoc. hieu va cam duc va danh vi ((cua triet) or (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cach tu nong o hoc. hieu va cam duc va danh vi ((cua triet) OR (cua vat))*.