Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hieu van » hieu va, thien van, lieu va
hanh doi » thanh doi, hanh noi, hang doi
doi cua » dai cua, hoi cua, dong cua
va hanh » van hanh, va thanh, va danh
cau luc » cau truc, cau phuc
cau xuc » cam xuc, cau truc, chat xuc
tu sach » thu sach, su sach, te sach
vu nang » vuc nang, va nang, vu dang
v nang » va nang, van nang, voi nang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((v nang) OR (vu nang)) xa hoi. hieu van ((cau xuc) OR (cau luc)) va hanh doi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((v nang) OR (vu nang)) xa hoi. hieu van ((cau xuc) or (cau luc)) va hanh doi cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ((v nang) OR (vu nang)) xa hoi. hieu van ((cau xuc) or (cau luc)) va hanh doi cua triet*.