Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
hieu van » hieu va, thien van, lieu va
hanh lam » thanh lap, hanh kem, hanh va
van hanh » van thanh, ban hanh, van anh
nhan luc » nang luc
chat luc » chat xuc, chat lua, chat huu
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
su sach » so sach, vu sach
lam va » nam va, dam va, lam ha

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: su sach ((ty nang) OR (ty hang)) xa hoi. hieu van ((chat luc) OR (nhan luc)) van hanh lam va triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ty nang) or (ty hang)) xa hoi. hieu van ((chat luc) OR (nhan luc)) van hanh lam va triet~".
• Adding a wildcard symbol may retrieve word variants: su sach ((ty nang) or (ty hang)) xa hoi. hieu van ((chat luc) OR (nhan luc)) van hanh lam va triet*.