Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
dung sai » dung tai, dung va, dung dat
va triet » va thiet, va trien, ve triet
sach ky » sac ky, sach ty, sach kem
lang xa » lang ha, dang xay, lang van
nam tuc » nam thuc, nam truc, nam tu
va dung » van dung, va duong, vat dung
tuc va » thuc va, truc va, tuc xa
cua te » cua tu

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 ky) OR (sach y)) lang xa hoi. hieu van nam tuc va dung sai ((va triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sach y)) lang xa hoi. hieu van nam tuc va dung sai ((va triet) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) OR (sach y)) lang xa hoi. hieu van nam tuc va dung sai ((va triet) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) OR (sach y)) lang xa hoi. hieu van nam tuc va dung sai ((va triet) or (cua te))*.