Perhaps you should try some spelling variations:
sinh cua » manh cua, dinh cuu, sinh va
chat xuc » chat huu, chao xu, chat cua
tu sach » thu sach, su sach, te sach
cua cua » cua chua, ca cua, qua cua
va sinh » va kinh, va tinh, vi sinh
sach ty » sach y, sach tu, sach thu
hieu ve » hieu va, hieu van
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 ty ((nang xa) or (nang ma)) hoi. hieu ve ((chat xuc) or (cam xuc)) va sinh cua cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((nang xa) OR (nang ma)) hoi. hieu ve ((chat xuc) OR (cam xuc)) va sinh cua cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((nang xa) or (nang ma)) hoi. hieu ve ((chat xuc) or (cam xuc)) va sinh cua cua tre*.