Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
cham duc » pham duc, cham soc, pham duy
ban hang » ngan hang
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va cham » va chat, va tham

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 ky nang xa hoi. hieu va cham duc ((ban hanh) OR (ban hang)) dai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu va cham duc ((ban hanh) OR (ban hang)) dai cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu va cham duc ((ban hanh) OR (ban hang)) dai cua triet*.