Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
nang van » dang van, tang van, lang van
hieu van » hieu va, thien van, lieu va
va triet » va thiet, va trien, ve triet
van hoc » van hoa
van cam » van nam, van lam, van cau
hanh di » hanh vi, hanh de, hang di
tu dan » tuc dan, tu ban, cu dan
luc va » duc va, tuc va, loc va
dan ky » van ky
xuc va » duc va, tuc va, xac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu dan ky nang van hoc. hieu van cam ((xuc va) OR (luc va)) hanh di ((va triet) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu dan ky nang van hoc. hieu van cam ((xuc va) OR (luc va)) hanh di ((va triet) OR (cua viet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu dan ky nang van hoc. hieu van cam ((xuc va) OR (luc va)) hanh di ((va triet) or (cua viet))*".