Perhaps you should try some spelling variations:
lang van » dang van, tang van, hoang van
hieu van » hieu va, thien van, lieu va
va triet » va thiet, va trien, ve triet
ky lang » ky nang, ky dang, ky tang
truc va » thuc va, thuc vat, trung va
hanh di » hanh vi, hanh de, hang di
tu ban » thu ban, te ban
ban ky » van ky, dan ky
tuc va » thuc va, tuc xa, duc 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 ban ky lang van hoa. hieu van nam ((tuc va) OR (truc va)) hanh di ((va triet) or (cua vat))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ban ky lang van hoa. hieu van nam ((tuc va) OR (truc va)) hanh di ((va triet) OR (cua vat)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ban ky lang van hoa. hieu van nam ((tuc va) OR (truc va)) hanh di ((va triet) or (cua vat))".
• Adding a wildcard symbol may retrieve word variants: tu ban ky lang van hoa. hieu van nam ((tuc va) OR (truc va)) hanh di ((va triet) or (cua vat))*.