Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tinh doi » trinh doc, trinh do, tinh hoc
nhan loc » nhan luc, nhan hoc, nhan loai
su sach » so sach, vu sach
va nhan » van nhan, ca nhan, va phan
tinh di » trinh di, tinh da, tin di
tu cach » tu cac
loc va » hoc va, luc va
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 cach) or (su sach)) ky nang x hoi. lieu va nhan loc va ((tinh di) OR (tinh doi)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su sach)) ky nang x hoi. lieu va nhan loc va ((tinh di) OR (tinh doi)) cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (su sach)) ky nang x hoi. lieu va nhan loc va ((tinh di) OR (tinh doi)) cua triet*".