Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
dau tien » van tien
van lang » van nang, va lang, van hang
thanh vi » hanh vi, thanh va, thanh ve
mai khoi » mai khoa, tai khoa, cac khoi
sach van » sach han, sach va, bach van
vuc van » duc van, luc van, thuc van
su hien » su kien, su tien, thu hien
te sach » toc sach
cam vuc » cam xuc
mai hoi » dai hoi, lai hoi, mai doi
hieu ve » hieu va, hieu van
ve cam » ve cham, ve cac, va cam

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 van lang ((mai hoi) OR (mai khoi)). hieu ve cam vuc van thanh vi ((su hien) OR (dau tien))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach van lang ((mai hoi) OR (mai khoi)). hieu ve cam vuc van thanh vi ((su hien) or (dau tien))~".
• Adding a wildcard symbol may retrieve word variants: te sach van lang ((mai hoi) OR (mai khoi)). hieu ve cam vuc van thanh vi ((su hien) or (dau tien))*.