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
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
kinh va » kinh van, tinh va, sinh va
va kinh » va tinh, qua kinh
thuc va » thuc vat, thuc dan, thuc day
van lam » van nam
dang ha » dong ha, dung ha, lang ha
ky dang » ky nang, ky danh
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 dang ha noi. thien van lam thuc va kinh va ((((cua tre) OR (cuu tre))) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dang ha noi. thien van lam thuc va kinh va ((((cua tre) OR (cuu tre))) OR (su viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang ha noi. thien van lam thuc va kinh va ((((cua tre) OR (cuu tre))) or (su viet))".
• Adding a wildcard symbol may retrieve word variants: te sach ky dang ha noi. thien van lam thuc va kinh va ((((cua tre) OR (cuu tre))) or (su viet))*.