Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
hieu van » hieu va, thien van, lieu va
van dinh » van minh, van dich, va dinh
van tuan » van quan, van ban, anh tuan
tuan xuc » quang xuc, tuan khuc, toan xac
xuc van » duc van, luc van, vuc van
dinh di » dinh du, dinh vi, danh di
ty nang » ty xang, ty hang, ly nang
te sach » toc sach

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

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