Perhaps you should try some spelling variations:
thien van » thi van
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
hanh lai » hanh lam, hanh tai, thanh lap
vu sach » vu bach, su sach, vu khach
xay hoi » tay hoi, cay phoi, gay thoi
van cac » van hac, van cau, van bac
va hanh » van hanh, va thanh, va danh
lai cua » dai cua, hai cua, lai chau
y dang » ky dang, 2 dang, _ dang
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach y dang ((xay hoi) OR (xa hoi)). thien van cac nuoc va hanh lai cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach y dang ((xay hoi) OR (xa hoi)). thien van cac nuoc va hanh lai cua te".
• Adding a wildcard symbol may retrieve word variants: vu sach y dang ((xay hoi) OR (xa hoi)). thien van cac nuoc va hanh lai cua te*.