Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hanh dao » lanh dao, thanh dat, thanh dam
hanh tai » thanh tai, hang tai, han tai
hieu van » hieu va, thien van, lieu va
sach ky » sac ky, sach y, sach ty
tu sach » thu sach, su sach, te sach
cau xuc » cam xuc, cau luc, chat xuc
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang

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 ky lang xa hoi. hieu van ((cau xuc) OR (cau truc)) va ((hanh tai) OR (hanh dao)) va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky lang xa hoi. hieu van ((cau xuc) OR (cau truc)) va ((hanh tai) or (hanh dao)) va triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. hieu van ((cau xuc) OR (cau truc)) va ((hanh tai) or (hanh dao)) va triet*.