Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
so sanh » do sanh
te sach » toc sach
nam xuc » cam xuc, nam xua, nam thuc
xuc van » duc van, luc van, vuc van
hanh va » hanh vi
va nam » van nam, ha nam, va nay
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: ((so sanh) or (te sach)) ky nang x hoi. lieu va nam xuc van ((hanh va) OR (hang va)) su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sanh) OR (te sach)) ky nang x hoi. lieu va nam xuc van ((hanh va) OR (hang va)) su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sanh) or (te sach)) ky nang x hoi. lieu va nam xuc van ((hanh va) OR (hang va)) su triet".
• Adding a wildcard symbol may retrieve word variants: ((so sanh) or (te sach)) ky nang x hoi. lieu va nam xuc van ((hanh va) OR (hang va)) su triet*.