Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh dien » dinh dien, danh kien, danh lien
nam thuc » nam thuoc, am thuc, nam thu
sach tu » sach thu, cach tu, sach uu
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
sach ty » sach y, sach thu, xach tay
thuc va » thuc vat, thuc dan, thuc day
va danh » va dinh, va dan, va hanh
va nam » van nam, ha nam, va nay
cua te » cua tu

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 ty) or (sach tu)) nang xa hoi. hieu va nam thuc va danh dien ((cua triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach tu)) nang xa hoi. hieu va nam thuc va danh dien ((cua triet) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: te ((sach ty) or (sach tu)) nang xa hoi. hieu va nam thuc va danh dien ((cua triet) or (cua te))*.