Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
toc sach » hoc sach, doc sach, thuoc sach
hanh vai » hanh vi, hanh va, hanh tai
co thuc » do thuc, co thua, mo thuc
thuc va » thuc vat, thuc dan, thuc day
cua tre » cua te, cuu tre, cua triet
sach uu » sach luu, sach tu, sach xu
hieu va » lieu va, hieu qua
lang ha » long ha
lang xa » dang xay, lang van
va co » vo co

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach uu ((lang xa) OR (lang ha)) hoi. hieu va co thuc va ((hanh vai) or (thanh tai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach uu ((lang xa) OR (lang ha)) hoi. hieu va co thuc va ((hanh vai) OR (thanh tai)) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach uu ((lang xa) OR (lang ha)) hoi. hieu va co thuc va ((hanh vai) or (thanh tai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: toc sach uu ((lang xa) OR (lang ha)) hoi. hieu va co thuc va ((hanh vai) or (thanh tai)) cua tre*.