Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
va thanh » gia thanh, ban thanh, va tinh
su sach » so sach, vu sach
vai cua » dai cua, hai cua, lai cua
van bac » van ban, van bao, van hac
van cac » van hac, van cau, dan cac
nang xa » nang x, lang xa, nang ma
da nang » cam nang, kha nang, cao nang
so sanh » do sanh
cua tre » cua te, cuu tre, cua triet
tac va » tac da, tac xa, tuc 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: ((su sach) OR (so sanh)) da nang xa hoi. hieu ((van cac) OR (van bac)) tac va thanh vai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sanh)) da nang xa hoi. hieu ((van cac) OR (van bac)) tac va thanh vai cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sanh)) da nang xa hoi. hieu ((van cac) OR (van bac)) tac va thanh vai cua tre*.