Perhaps you should try some spelling variations:
ban thanh » ban hanh
cua triet » cua viet, su triet, va triet
ban hang » ngan hang
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
cac dac » cac dan, cac dai, cac bac
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 ky nang x hoi. hieu va cac dac ((ban thanh) or (ban hang)) dai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang x hoi. hieu va cac dac ((ban thanh) OR (ban hang)) dai cua triet.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang x hoi. hieu va cac dac ((ban thanh) or (ban hang)) dai cua triet*.