Perhaps you should try some spelling variations:
sang tao » hang tai
chua tre » chua tri, cua tre, chua trieu
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty sang » ty xang, ty hang, duy sang
hieu ve » hieu va, hieu van
cac tuc » cac toc, cac tu, cac tac
ve cac » va cac, vien cac
tuc va » thuc va, truc va, tuc xa

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty sang tao boi. hieu ve cac tuc va ((hang va) OR (hanh vi)) chua tre~.
• Adding a wildcard symbol may retrieve word variants: te sach ty sang tao boi. hieu ve cac tuc va ((hang va) or (hanh vi)) chua tre*.