Perhaps you should try some spelling variations:
tham nang » nham nang, tham lang, tham nhung
sach tham » sach nha
toc sach » hoc sach, doc sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, va danh
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
va cao » va co, va dao, va bao

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: toc sach tham nang xa hoi. hieu ((va cao) OR (va cac)) truc va hanh vai ((cua tre) OR (cuu tre))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach tham nang xa hoi. hieu ((va cao) or (va cac)) truc va hanh vai ((cua tre) OR (cuu tre))~".
• Adding a wildcard symbol may retrieve word variants: toc sach tham nang xa hoi. hieu ((va cao) or (va cac)) truc va hanh vai ((cua tre) OR (cuu tre))*.