Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh tri » thanh tri, hanh tai, hanh trinh
su sach » so sach
vu sach » vu bach, vu khach
nang xa » nang x, lang xa, nang ma
van bac » van bao, van hac, dan bac
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va

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 xa hoi. hieu ((van bac) or (van ban)) xuc va hanh tri cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu sach)) ky nang xa hoi. hieu ((van bac) OR (van ban)) xuc va hanh tri cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (vu sach)) ky nang xa hoi. hieu ((van bac) or (van ban)) xuc va hanh tri cua triet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (vu sach)) ky nang xa hoi. hieu ((van bac) or (van ban)) xuc va hanh tri cua triet*.