Perhaps you should try some spelling variations:
thien van » thi van
vu thanh » su thanh, vu khanh, cuu thanh
thanh ky » hanh ky, than ky, thanh tay
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
hanh tai » thanh tai, hang tai, han tai
ky dang » ky nang, ky danh
xay hoi » tay hoi, cay phoi, gay thoi
van cac » van hac, van cau, van bac
va hanh » van hanh, va thanh, va danh
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: vu thanh ky dang ((xay hoi) or (xa hoi)). thien van cac nuoc va hanh tai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu thanh ky dang ((xay hoi) OR (xa hoi)). thien van cac nuoc va hanh tai cua tre.
• Adding a wildcard symbol may retrieve word variants: vu thanh ky dang ((xay hoi) or (xa hoi)). thien van cac nuoc va hanh tai cua tre*.