Perhaps you should try some spelling variations:
dinh cuu » dinh chi
can thuc » dan thuc, van thuc, cay thuc
dinh cu » dinh chuc, dinh chau, dinh chi
thuc ca » thuc cua, thuc can, thuc cao
hieu ve » hieu va, hieu van
sach ky » sac ky, sach ty, sach kem
nang ma » tang ma, sang ma, nang cao
ve can » ve canh, ve cac, ve ban
ma hoi » mai hoi, xa hoi, ma hoa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: nuoc ((sach ky) OR (sach y)) nang ma hoi. hieu ve can thuc ca dao ((dinh cu) or (dinh cuu)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nuoc ((sach ky) OR (sach y)) nang ma hoi. hieu ve can thuc ca dao ((dinh cu) OR (dinh cuu)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc ((sach ky) OR (sach y)) nang ma hoi. hieu ve can thuc ca dao ((dinh cu) or (dinh cuu)) tre".
• Adding a wildcard symbol may retrieve word variants: nuoc ((sach ky) OR (sach y)) nang ma hoi. hieu ve can thuc ca dao ((dinh cu) or (dinh cuu)) tre*.