Perhaps you should try some spelling variations:
sinh cua » manh cua, sinh va
dinh cuu » dinh chi
cao duc » dao duc, cao suc, giao duc
va dinh » van dinh, va kinh, va tinh
sach ky » sach y, sach ty, sach kem
hieu ve » hieu va, hieu van
sac ky » cac ky, sai ky
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) OR (sac ky)) nang x hoi. hieu ve cao duc va dinh ((dinh cuu) or (sinh cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) nang x hoi. hieu ve cao duc va dinh ((dinh cuu) OR (sinh cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sac ky)) nang x hoi. hieu ve cao duc va dinh ((dinh cuu) or (sinh cua)) tre*".