Perhaps you should try some spelling variations:
thanh nhan » thanh phan, thanh san, thanh toan
hoc sach » hoc sinh, hoc cac, hoc anh
nhan cua » nhat cua, nhan luc, nhan su
thuc va » thuc vat, thuc dan, thuc day
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, cua triet
lang ha » long ha
lang xa » dang xay, lang van
luc va » duc va, tuc va, loc va
va cam » va cham, va cac, va cao

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 ky ((lang xa) OR (lang ha)) hoi. lieu va cam ((luc va) or (thuc va)) thanh nhan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ky ((lang xa) OR (lang ha)) hoi. lieu va cam ((luc va) OR (thuc va)) thanh nhan cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach ky ((lang xa) OR (lang ha)) hoi. lieu va cam ((luc va) or (thuc va)) thanh nhan cua tre".
• Adding a wildcard symbol may retrieve word variants: hoc sach ky ((lang xa) OR (lang ha)) hoi. lieu va cam ((luc va) or (thuc va)) thanh nhan cua tre*.