Perhaps you should try some spelling variations:
thien van » thi van
ban thanh » ban hanh, ban hang
duc ban » duc tan, duc van, dua ban
bao duc » dao duc, bao luc, cao duc
tu sach » thu sach, su sach, te sach
so sach » so sanh, bo sach, co sach
van bao » van ban, van dao
vi cua » vai cua
di cua » dai cua, doi cua, de cua
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) or (so sach)) ky nang x hoi. thien van bao duc ban thanh ((vi cua) or (di cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (so sach)) ky nang x hoi. thien van bao duc ban thanh ((vi cua) OR (di cua)) triet.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (so sach)) ky nang x hoi. thien van bao duc ban thanh ((vi cua) or (di cua)) triet*.