Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
va thanh » gia thanh, ban thanh, va tinh
vai cua » dai cua, hai cua, lai cua
van anh » van thanh, tuan anh, van minh
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach v nang xa hoi. hieu ((ban hang) OR (ngan hang)) luc ((va thanh) or (van anh)) vai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach v nang xa hoi. hieu ((ban hang) OR (ngan hang)) luc ((va thanh) OR (van anh)) vai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach v nang xa hoi. hieu ((ban hang) OR (ngan hang)) luc ((va thanh) or (van anh)) vai cua tre".
• Adding a wildcard symbol may retrieve word variants: hoc sach v nang xa hoi. hieu ((ban hang) OR (ngan hang)) luc ((va thanh) or (van anh)) vai cua tre*.