Perhaps you should try some spelling variations:
dang xay » dang van, van xay
cham xuc » cam xuc, chat xuc, cham soc
va thanh » ban thanh, va tinh, le thanh
bo sach » co sach, hoc sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
va cham » va chat, va tham
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: bo sach ky ((nang x) or (dang xay)) hoi. hieu va cham xuc ((va thanh) OR (gia thanh)) dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ky ((nang x) OR (dang xay)) hoi. hieu va cham xuc ((va thanh) OR (gia thanh)) dai cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo sach ky ((nang x) or (dang xay)) hoi. hieu va cham xuc ((va thanh) OR (gia thanh)) dai cua tre*".