Perhaps you should try some spelling variations:
danh sai » dung sai, danh bat, danh dau
sai cua » dai cua, hai cua, lai cua
sach ky » sach y, sach ty, sach kem
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
soc va » hoc va, loc va, goc va
doc va » duoc va, hoc va, duc va
sac ky » cac ky, sai ky

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 ky) OR (sac ky)) nang xa hoi. hieu ve cham ((soc va) OR (doc va)) danh sai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) or (sac ky)) nang xa hoi. hieu ve cham ((soc va) OR (doc va)) danh sai cua tre~".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) or (sac ky)) nang xa hoi. hieu ve cham ((soc va) OR (doc va)) danh sai cua tre*.