Perhaps you should try some spelling variations:
sach thue » sach thieu, sach tham, cach thuc
hanh lai » hanh lam, hanh tai, thanh lap
sach thu » sach thieu, sach tham, cach thuc
va cham » va chat, va tham
lai cua » dai cua, hai cua, lai chau
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
nang xa » nang x, lang xa, nang ma
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach thu) or (sach thue)) nang xa hoi. hieu ((ve cam) or (va cham)) duc va hanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach thu) OR (sach thue)) nang xa hoi. hieu ((ve cam) OR (va cham)) duc va hanh lai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu ((sach thu) or (sach thue)) nang xa hoi. hieu ((ve cam) or (va cham)) duc va hanh lai cua tre*.