Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
hanh lam » thanh lap, hanh kem, hanh va
su sach » vu sach
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
van hai » van ha, van chat, van phan
xuc van » duc van, luc van, vuc van
lam cua » nam cua, lam chat

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