Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
lang dau » hang dau, xang dau, nang dau
te sach » toc sach
tu cham » toc cham, thi cham
hieu tu » chieu tu, hieu tuc, hien tu
tang ma » mang may, tang van
y tang » ky tang, 6 tang, 7 tang
tuc va » thuc va, truc va, tuc xa
ma hoi » mai hoi, xa hoi, ma hoa
luc va » duc va, loc va

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