Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
lanh hai » manh hai, thanh hai, lang chai
ban lanh » ban hanh, ban linh, ban anh
tu sach » su sach, te sach, tu cach
hai cua » thai cua, dai cua, hoi cua
soc ban » hoc ban, coc ban, so ban
va cham » va chat, va tham
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
cua tre » cua te, cuu tre, cua triet

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) OR (thu sach)) ty ((nang xa) or (nang ma)) hoi. lieu va cham soc ban lanh hai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ty ((nang xa) OR (nang ma)) hoi. lieu va cham soc ban lanh hai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (thu sach)) ty ((nang xa) or (nang ma)) hoi. lieu va cham soc ban lanh hai cua tre*".