Perhaps you should try some spelling variations:
chieu chien » thien chien, hieu hien
va triet » va thiet, va trien, ve triet
va dinh » van dinh, va kinh, vu dinh
va tinh » may tinh
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
sach ky » sac ky, sach y, sach ty
cac bo » cac co
vai va » mai va, dai va, hai 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 ky nang xa hoi. chieu chien ((cac bo) OR (bac bo)) ((va dinh) OR (va tinh)) vai va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. chieu chien ((cac bo) or (bac bo)) ((va dinh) OR (va tinh)) vai va triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. chieu chien ((cac bo) or (bac bo)) ((va dinh) OR (va tinh)) vai va triet*.