Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cua triet » cua viet, su triet
thanh cho » thanh pho, thanh cha, thanh chu
va triet » va thiet, va trien, ve triet
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
te sach » toc sach
van hoc » van hoa
dan ban » van ban, can ban, dan ba
y nang » ky nang, ly nang, v nang
x hoi » xa hoi, o hoi, x ho

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 (thu sach)) y nang x hoi. hieu van hoc dan ban thanh cho ((cua triet) OR (va triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (thu sach)) y nang x hoi. hieu van hoc dan ban thanh cho ((cua triet) OR (va triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (thu sach)) y nang x hoi. hieu van hoc dan ban thanh cho ((cua triet) OR (va triet))".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (thu sach)) y nang x hoi. hieu van hoc dan ban thanh cho ((cua triet) OR (va triet))*.