Perhaps you should try some spelling variations:
sinh cua » manh cua, sinh va
dinh cuu » dinh chi
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
va dinh » van dinh, va kinh, va tinh
va danh » va dan, va hanh, dia danh
cao duc » dao duc, cao suc, giao duc
hieu ve » hieu va, hieu van
ve cao » va cao, ve bao, ve cac
x hoi » xa hoi, o hoi, x ho

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 ky nang x hoi. hieu ve cao duc ((va danh) OR (va dinh)) ((dinh cuu) or (sinh cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. hieu ve cao duc ((va danh) OR (va dinh)) ((dinh cuu) OR (sinh cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang x hoi. hieu ve cao duc ((va danh) OR (va dinh)) ((dinh cuu) or (sinh cua)) tre*".