Perhaps you should try some spelling variations:
nhan luoc » nhan luc, nhan cuoc, nhan duoc
cua triet » cua viet, su triet, va triet
van hanh » van thanh, van anh, van ban
ban hanh » ban hang
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
vi cua » vai cua, di cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang xa hoi. ((hieu qua) or (lieu va)) nhan luoc ((van hanh) OR (ban hanh)) vi cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. ((hieu qua) OR (lieu va)) nhan luoc ((van hanh) OR (ban hanh)) vi cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. ((hieu qua) or (lieu va)) nhan luoc ((van hanh) OR (ban hanh)) vi cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. ((hieu qua) or (lieu va)) nhan luoc ((van hanh) OR (ban hanh)) vi cua triet*.