Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
sach thu » sach thue, sach thieu, sach tham
sach ty » sach y, sach tu, xach tay
lai cua » dai cua, hai cua, lai chau
thuc va » thuc vat, thuc dan, thuc day
thi van » thi lan, thi hanh, thi nang
lang xa » lang ha, dang xay, lang van
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va

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 ty) OR (sach thu)) lang xa hoi. thi van nam ((luc va) or (thuc va)) hanh lai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach thu)) lang xa hoi. thi van nam ((luc va) OR (thuc va)) hanh lai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach thu)) lang xa hoi. thi van nam ((luc va) or (thuc va)) hanh lai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) OR (sach thu)) lang xa hoi. thi van nam ((luc va) or (thuc va)) hanh lai cua tre*.