Perhaps you should try some spelling variations:
la triet » va triet, cua triet, cau triet
thanh ky » hanh ky, thanh tay, thanh huy
xuc van » duc van, luc van, vuc van
cac xuc » cam xuc, cac nuoc, chat xuc
sach le » cach le, sach de, sach lo
so sach » so sanh, bo sach, co sach
tang ma » mang may, tang van
hang ma » hang va, hang ca, nang ma
hieu ve » hieu va, hieu van
ve cac » va cac, vien cac

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