Perhaps you should try some spelling variations:
thuat san » thuat toan, thuat song, thuat lanh
ve triet » va trien, su triet
va triet » va thiet, va trien, cua triet
lang van » dang van, tang van, hoang van
va hanh » van hanh, va thanh, va danh
te sach » toc sach
van hoi » van hoa, van hoc, van hoe
ky lang » ky nang, ky dang, ky tang
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc 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) or (thuat san)) ky lang van hoi. hieu va cam xuc va hanh vi ((va triet) OR (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thuat san)) ky lang van hoi. hieu va cam xuc va hanh vi ((va triet) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (thuat san)) ky lang van hoi. hieu va cam xuc va hanh vi ((va triet) OR (ve triet))".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thuat san)) ky lang van hoi. hieu va cam xuc va hanh vi ((va triet) OR (ve triet))*.