Perhaps you should try some spelling variations:
thieu nien » thien nhien
thu sach » thuat sach, thuoc sach, thu hoach
nien cac » vien cac, dien cac, bien cac
tu sach » su sach, te sach, tu cach
nang xa » nang x, lang xa, nang ma
cac xuc » cam xuc, cac nuoc, chat xuc
va dung » van dung, va duong, vat dung
su viet » so viet
xuc va » duc va, tuc va, luc 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 (thu sach)) ky nang xa hoi. thieu nien cac xuc va dung tai ((su viet) or (va thiet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky nang xa hoi. thieu nien cac xuc va dung tai ((su viet) OR (va thiet)).
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky nang xa hoi. thieu nien cac xuc va dung tai ((su viet) or (va thiet))*.