Perhaps you should try some spelling variations:
dinh vai » dinh van, dinh vi, dinh va
cua tre » cuu tre, cua triet, dua tren
cach tu » cach thuc
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
sach tu » sach thu, sach ty, sach uu
co thuc » do thuc, co thua, mo thuc
thuc va » thuc vat, thuc dan, thuc day
va dinh » van dinh, va kinh, va tinh
cua te » cua tu
va co » vo co

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sach tu) or (cach tu)) nang xa hoi. hieu va co thuc va dinh vai ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach tu) OR (cach tu)) nang xa hoi. hieu va co thuc va dinh vai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach tu) or (cach tu)) nang xa hoi. hieu va co thuc va dinh vai ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: te ((sach tu) or (cach tu)) nang xa hoi. hieu va co thuc va dinh vai ((cua tre) OR (cua te))*.