Perhaps you should try some spelling variations:
thieu nien » thien nhien
nien cac » vien cac, dien cac, bien cac
thu sach » thuat sach, thuoc sach, thu hoach
van hanh » van thanh, ban hanh, van anh
cac tuc » cac toc, cac tu, cac tac
ban cua » ban quan
va hanh » va thanh, va danh, ban hanh
tu sach » su sach, te sach, tu cach
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
cua te » cua tu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky lang xa hoi. thieu nien cac tuc ((va hanh) OR (van hanh)) ban cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (thu sach)) ky lang xa hoi. thieu nien cac tuc ((va hanh) OR (van hanh)) ban cua te~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky lang xa hoi. thieu nien cac tuc ((va hanh) OR (van hanh)) ban cua te*.