Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
thanh vai » thanh hai, thanh van, thanh tai
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
te sach » toc sach
ky sang » ky nang, ky dang, duy sang
ky tang » ky nang, ky dang, kho tang
van cau » van dau, van hau, van chat
qua ban » cua ban, qua quan
cua tre » cua te, cuu tre, dua tren

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 ((ky sang) OR (ky tang)) ma hoa. hieu van cau qua ban thanh vai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ky sang) OR (ky tang)) ma hoa. hieu van cau qua ban thanh vai ((cua tre) OR (cua triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ky sang) OR (ky tang)) ma hoa. hieu van cau qua ban thanh vai ((cua tre) or (cua triet))*".