Perhaps you should try some spelling variations:
doanh tien » doanh tren, doanh vien, doanh chien
vat doanh » van doanh, vay doanh, va doanh
thu sach » tu sach, thuat sach, thuoc sach
cau thuc » cau truc, cuu thuc, can thuc
tien cua » trien cua, tiep cua, khien cua
sach ty » sach y, sach tu, sach thu
ty lang » tay lang, ty xang, ty hang
lang xa » lang ha, dang xay, lang van
qua cau » quan cau, qua cac, qua ca
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 lang xa hoi. hieu qua cau thuc vat doanh tien cua tre~.
• Adding a wildcard symbol may retrieve word variants: thu sach ty lang xa hoi. hieu qua cau thuc vat doanh tien cua tre*.