Perhaps you should try some spelling variations:
sach tham » sach nha
tham lang » nham nang, pham hang, thai bang
thanh va » thanh van, hanh va, thanh ha
te sach » toc sach
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cuu tre » cau tren, cau treo
cua tre » cua te, cua triet, dua tren
va han » va phan, van han, va hanh

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 tham lang xa hoi. hieu va han quoc gia ((hanh vi) OR (thanh va)) ((cuu tre) OR (cua tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach tham lang xa hoi. hieu va han quoc gia ((hanh vi) or (thanh va)) ((cuu tre) OR (cua tre))~".
• Adding a wildcard symbol may retrieve word variants: te sach tham lang xa hoi. hieu va han quoc gia ((hanh vi) or (thanh va)) ((cuu tre) OR (cua tre))*.