Perhaps you should try some spelling variations:
thieu nien » thien nhien
thu sach » tu sach, thuat sach, thuoc sach
nien cap » nien lap, vien cac, vien cao
cap nuoc » dat nuoc
ban hanh » ban hang
ty dang » ky dang, ty hang, ty dong
xay hoi » xa hoi, tay hoi, cay phoi
va danh » va dinh, va dan, va hanh
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: thu sach ((ty dang) OR (ty xang)) xay hoi. thieu nien cap nuoc ((va danh) or (ban hanh)) dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ((ty dang) OR (ty xang)) xay hoi. thieu nien cap nuoc ((va danh) OR (ban hanh)) dai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ((ty dang) OR (ty xang)) xay hoi. thieu nien cap nuoc ((va danh) or (ban hanh)) dai cua te".
• Adding a wildcard symbol may retrieve word variants: thu sach ((ty dang) OR (ty xang)) xay hoi. thieu nien cap nuoc ((va danh) or (ban hanh)) dai cua te*.