Perhaps you should try some spelling variations:
thieu nien » thien nhien
nien cac » vien cac, dien cac, bien cac
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
danh dai » danh dau, danh di, danh sai
te sach » toc sach
ky dang » ky danh
xay hoi » xa hoi, cay phoi, gay thoi
tay hoi » tay ho, tao hoi, tay thai
va danh » va dinh, va dan, va hanh
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: te sach ((ky dang) OR (ky nang)) ((xay hoi) 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: te sach ((ky dang) OR (ky nang)) ((xay hoi) 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: "te sach ((ky dang) OR (ky nang)) ((xay hoi) or (tay hoi)). thieu nien cac nuoc va danh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: te sach ((ky dang) OR (ky nang)) ((xay hoi) or (tay hoi)). thieu nien cac nuoc va danh dai cua tre*.