Perhaps you should try some spelling variations:
thien van » thi van
lam thuc » lam thuoc, am thuc, nam thuc
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang ha » nang hai, nang han, nang hoa
van lam » van nam
thuc va » thuc vat, thuc dan, thuc day
va kinh » va tinh, qua kinh
kinh va » kinh van, tinh va, sinh va
cua tre » cua te, cuu tre, cua triet
su viet » so viet

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 ky nang ha noi. thien van lam thuc va kinh va ((cua tre) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ha noi. thien van lam thuc va kinh va ((cua tre) OR (su viet)).
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ha noi. thien van lam thuc va kinh va ((cua tre) or (su viet))*.