Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac, hoc anh
tang van » dang van, hoang van, trong van
thanh vi » hanh vi, thanh va, thanh ve
hanh ve » hanh vi, hanh va, hanh kem
va chat » van chat, va phat, cao chat
ve cham » va cham, ve chat, vu cham
van hoi » van hoa, van hoc, van hoe
cuu tre » cua tre, cau tren, cau treo
y tang » ky tang, 6 tang, 7 tang
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach y tang van hoi. hieu ((ve cham) or (va chat)) tuc va ((thanh vi) or (hanh ve)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach y tang van hoi. hieu ((ve cham) OR (va chat)) tuc va ((thanh vi) OR (hanh ve)) cuu tre.
• Adding a wildcard symbol may retrieve word variants: hoc sach y tang van hoi. hieu ((ve cham) or (va chat)) tuc va ((thanh vi) or (hanh ve)) cuu tre*.