Perhaps you should try some spelling variations:
ban doanh » van doanh, san doanh, ban danh
thu sach » tu sach, thuat sach, thuoc sach
nang lai » nang tai, mang lai, nang cai
ban hanh » ban hang
su triet » su viet, su tien, ve triet
sach ky » sac ky, sach y, sach ty
lai hoi » dai hoi, lai hoa, lai roi
cam dua » ca dua, cay dua, cach dua
vi su » va su, ve su, ki su

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ky nang lai hoi. lieu va ((cam dua) or (chay dua)) ((ban doanh) or (ban hanh)) vi su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ky nang lai hoi. lieu va ((cam dua) OR (chay dua)) ((ban doanh) OR (ban hanh)) vi su triet.
• Adding a wildcard symbol may retrieve word variants: thu sach ky nang lai hoi. lieu va ((cam dua) or (chay dua)) ((ban doanh) or (ban hanh)) vi su triet*.