Perhaps you should try some spelling variations:
thieu nien » thien nhien
cua triet » cua viet, su triet, va triet
danh vai » danh sai, danh va, doanh van
nien cac » vien cac, dien cac, bien cac
nang xa » nang x, lang xa, nang ma
su sach » so sach, vu sach
vai cua » dai cua, hai cua, lai cua
tu sach » thu sach, te sach, tu cach
bao va » bao ve, ban va, cao va

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 (su sach)) ky nang xa hoi. thieu nien cac ((bao va) OR (tao va)) danh vai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) or (su sach)) ky nang xa hoi. thieu nien cac ((bao va) OR (tao va)) danh vai cua triet~".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky nang xa hoi. thieu nien cac ((bao va) OR (tao va)) danh vai cua triet*.