Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban hanh » ban hang
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cac duc » cac du, cao duc, cac dac
di cua » dai cua, doi cua, de cua
tuan » quan, tran, luan

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. lieu va cac duc ((ban hanh) or (tuan anh)) di cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. lieu va cac duc ((ban hanh) OR (tuan anh)) di cua triet.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. lieu va cac duc ((ban hanh) or (tuan anh)) di cua triet*.