Perhaps you should try some spelling variations:
thieu nien » thien nhien
danh dai » danh dau, danh di, danh sai
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
nien cac » vien cac, dien cac, bien cac
gay thoi » may thoi, tay thoi, ngay tuoi
tu sach » thu sach, su sach, te sach
va danh » va dinh, va dan, va hanh
cua tre » cua te, cuu tre, cua triet
tay hoi » tay ho, tao hoi, tay thai
sach ky » sac ky, sach y, sach ty
xay hoi » xa hoi, cay phoi, may thoi
ky dang » ky nang, ky danh

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky dang ((((xay hoi) OR (gay thoi))) or (tay hoi)). thieu nien cac nuoc va danh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky dang ((((xay hoi) OR (gay thoi))) OR (tay hoi)). thieu nien cac nuoc va danh dai cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky dang ((((xay hoi) OR (gay thoi))) or (tay hoi)). thieu nien cac nuoc va danh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky dang ((((xay hoi) OR (gay thoi))) or (tay hoi)). thieu nien cac nuoc va danh dai cua tre*.