Perhaps you should try some spelling variations:
hanh lam » thanh lap, hanh kem, hanh va
cham luc » nhan luc, cham cuu, chat lua
te sach » toc sach
lam cua » nam cua, lam chat
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, cua triet
sach v » sach va, sach y, sach 2

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