Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
dong von » dung von, dong co, dong hoc
hieu van » hieu va, thien van, lieu va
tuc van » thuc van, truc van, tuc va
te sach » toc sach
hac tuc » thac toc, thai tuc
nang ma » tang ma, sang ma, mang may
van hac » van hoc, van ha, van hai

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 ((nang ma) or (nang cao)) hoi. hieu van hac tuc van dong von ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((nang ma) OR (nang cao)) hoi. hieu van hac tuc van dong von ((cua triet) OR (va triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((nang ma) or (nang cao)) hoi. hieu van hac tuc van dong von ((cua triet) OR (va triet))*".