Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
va triet » va thiet, va trien, ve triet
thanh vi » hanh vi, thanh va, thanh ve
thi van » thi lan, thi hanh, thi nang
te sach » toc sach
hieu ve » hieu va, hieu van
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
cac ly » cac ky, cac le, cam ly
ly ban » uy ban, lo ban, ly bai
vi va » vi van, vai va, vu 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 ((ty nang) OR (ty hang)) xa hoi. ((hieu ve) or (thi van)) cac ly ban thanh vi va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ty hang)) xa hoi. ((hieu ve) OR (thi van)) cac ly ban thanh vi va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) OR (ty hang)) xa hoi. ((hieu ve) or (thi van)) cac ly ban thanh vi va triet".
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) OR (ty hang)) xa hoi. ((hieu ve) or (thi van)) cac ly ban thanh vi va triet*.