Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
la triet » va triet, cua triet, cau triet
thanh ky » hanh ky, than ky, thanh tay
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
so sach » so sanh, bo sach, hoc sach
hang ca » hang va, nang cao, hang tai
hang ma » hang va, tang ma, nang ma
co sach » bo sach, cuon sach, hoc sach
ve cac » va cac, vien cac
ky la » ky le, ky va

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: ((so sach) OR (co sach)) le ((hang ma) OR (hang ca)) hoi. hieu ve cac xuc van thanh ky la triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) OR (co sach)) le ((hang ma) or (hang ca)) hoi. hieu ve cac xuc van thanh ky la triet~".
• Adding a wildcard symbol may retrieve word variants: ((so sach) OR (co sach)) le ((hang ma) or (hang ca)) hoi. hieu ve cac xuc van thanh ky la triet*.