Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
va triet » va thiet, va trien, ve triet
te sach » toc sach
ty hang » ly hang, ty xang, thi hang
ki nang » ky nang
van coc » van hoc, van loc, van co
luc va » duc va, tuc va, loc va
dai va » mai va
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 ((ty hang) or (ki nang)) x hoi. hieu van coc luc va thanh dai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty hang) OR (ki nang)) x hoi. hieu van coc luc va thanh dai va triet.
• Adding a wildcard symbol may retrieve word variants: te sach ((ty hang) or (ki nang)) x hoi. hieu van coc luc va thanh dai va triet*.