Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vai » thanh hai, thanh van, thanh tai
hieu van » hieu va, thien van, lieu va
duoc ban » duc ban, quoc ban, buoc ban
va triet » va thiet, va trien, ve triet
sach ky » sac ky, sach ty, sach kem
van tao » van thao, vang tao, van tai
cua te » cua tu
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: tu ((sach ky) OR (sach y)) nang x hoi. hieu van tao duoc ban thanh vai ((va triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sach y)) nang x hoi. hieu van tao duoc ban thanh vai ((va triet) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sach y)) nang x hoi. hieu van tao duoc ban thanh vai ((va triet) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ky) OR (sach y)) nang x hoi. hieu van tao duoc ban thanh vai ((va triet) or (cua te))*.