Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, hieu ve
van hanh » van thanh, ban hanh, van anh
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
ky sang » ky nang, ky dang, ky tang
sang xa » song xa, lang xa, sang ma
va hanh » va thanh, va danh, ban hanh
vai cua » dai cua, hai cua, lai cua
cua te » cua tu

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: su sach ky sang xa hoi. ((hieu van) OR (lieu va)) cam xuc ((va hanh) OR (van hanh)) vai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky sang xa hoi. ((hieu van) or (lieu va)) cam xuc ((va hanh) OR (van hanh)) vai cua te~".
• Adding a wildcard symbol may retrieve word variants: su sach ky sang xa hoi. ((hieu van) or (lieu va)) cam xuc ((va hanh) OR (van hanh)) vai cua te*.