Perhaps you should try some spelling variations:
ban hang » ngan hang
thai va » thai van
xuc ban » duc ban, cuc ban, quoc ban
su sach » so sach
hieu va » lieu va, hieu qua
vu sach » vu bach, vu khach
dao xuc » dao duc, dao tuc, dao xu
va dao » ca dao
hai va » hai van, hoi 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: ((su sach) or (vu sach)) ky nang x hoi. hieu va dao xuc ban hang ((hai va) OR (thai va)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky nang x hoi. hieu va dao xuc ban hang ((hai va) OR (thai va)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) ky nang x hoi. hieu va dao xuc ban hang ((hai va) OR (thai va)) triet*".