Perhaps you should try some spelling variations:
tinh tai » trinh tai, tinh thai, tinh hai
sach ty » sach tu, sach thu, xach tay
tang ma » mang may, tang van
lang xa » lang ha, dang xay, lang van
qua cam » qua cham, qua cac, qua ca
cam duc » cam xuc, cao duc, pham duc
va tinh » may tinh
tai cua » thai cua, tai cuc, tri cua
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: thu ((sach ty) or (sach y)) ((tang ma) or (lang xa)) hoi. hieu qua cam duc va tinh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ty) OR (sach y)) ((tang ma) OR (lang xa)) hoi. hieu qua cam duc va tinh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: thu ((sach ty) or (sach y)) ((tang ma) or (lang xa)) hoi. hieu qua cam duc va tinh tai cua tre*.