Perhaps you should try some spelling variations:
thieu nien » thien nhien
cua triet » cua viet, su triet, va triet
nien cac » vien cac, dien cac, bien cac
dinh vai » dinh van, dinh vi, dinh va
tu sach » thu sach, su sach, te sach
vu sach » vu bach, su sach, vu khach
nang xa » nang x, lang xa, nang ma
cac ban » cac dan, cac van, can ban
ve dinh » vu dinh, le dinh, ve sinh
vai cua » dai cua, hai cua, lai cua
ban ve » ban va

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) or (vu sach)) ky nang xa hoi. thieu nien cac ban ve dinh vai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (vu sach)) ky nang xa hoi. thieu nien cac ban ve dinh vai cua triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (vu sach)) ky nang xa hoi. thieu nien cac ban ve dinh vai cua triet*.