Perhaps you should try some spelling variations:
cham truc » cau truc, nham thuc, pham thuc
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
te sach » toc sach
sach cu » sach cua, sach tu, sach uu
cua tre » cua te, cua triet, dua tren
dinh te » kinh te, dinh ve, dinh tu
truc va » thuc va, thuc vat, trung va
lang xa » lang ha, dang xay, lang van
cu lang » cua lang, tu lang, xu lang
cuu tre » cau tren, cau treo

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach cu lang xa hoi. hieu van cham truc va ((dinh te) OR (dich te)) ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach cu lang xa hoi. hieu van cham truc va ((dinh te) or (dich te)) ((cua tre) OR (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: te sach cu lang xa hoi. hieu van cham truc va ((dinh te) or (dich te)) ((cua tre) OR (cuu tre))*.