Perhaps you should try some spelling variations:
tich vai » tich van, tich tai, tich vi
dang xay » dang van, van xay
cham xuc » cam xuc, chat xuc, cham soc
bo sach » co sach, hoc sach
sach ky » sac ky, sach y, sach ty
va cham » va chat, va tham
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
xuc va » duc va, tuc va, luc va

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 ((dang xay) or (nang x)) hoi. hieu va cham xuc va ((tich vai) or (tich va)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo sach ky ((dang xay) OR (nang x)) hoi. hieu va cham xuc va ((tich vai) OR (tich va)) cua tre.
• Adding a wildcard symbol may retrieve word variants: bo sach ky ((dang xay) or (nang x)) hoi. hieu va cham xuc va ((tich vai) or (tich va)) cua tre*.