Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
hang xa » hoang xa, hang va, hang ca
ve cham » va cham, ve chat, ve chim
vu cham » va cham, vu kham, tu cham
lam cua » nam cua, lam chat
cua tre » cua te, cuu tre, cua triet
y hang » ly hang, ty hang, yu hang

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 y hang xa hoi. hieu ((ve cham) OR (vu cham)) soc ((ban thanh) OR (van hanh)) lam cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y hang xa hoi. hieu ((ve cham) OR (vu cham)) soc ((ban thanh) or (van hanh)) lam cua tre~".
• Adding a wildcard symbol may retrieve word variants: te sach y hang xa hoi. hieu ((ve cham) OR (vu cham)) soc ((ban thanh) or (van hanh)) lam cua tre*.