Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh ngon » danh nhan, dinh ngoc
danh con » danh co, dang cong, hanh cong
hieu van » hieu va, thien van, lieu va
xuc van » duc van, luc van, vuc van
bo sach » co sach, hoc sach
nang xa » nang x, lang xa, nang ma
te sach » toc sach
nam xuc » cam xuc, nam xua, nam thuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((bo sach) or (te sach)) ky nang xa hoi. hieu van nam xuc van ((danh con) OR (danh ngon)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((bo sach) OR (te sach)) ky nang xa hoi. hieu van nam xuc van ((danh con) OR (danh ngon)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((bo sach) or (te sach)) ky nang xa hoi. hieu van nam xuc van ((danh con) OR (danh ngon)) cua triet".
• Adding a wildcard symbol may retrieve word variants: ((bo sach) or (te sach)) ky nang xa hoi. hieu van nam xuc van ((danh con) OR (danh ngon)) cua triet*.