Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hien cac » thien cac, vien cac, dien cac
hieu cac » hieu luc, hieu va, hieu van
van dinh » van minh, van dich, va dinh
dinh vai » dinh van, dinh vi, dinh va
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
bao van » dao van, cao van, hao van
vai cua » dai cua, hai cua, lai cua

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. hieu ((hien cac) OR (hieu cac)) bao van dinh vai cua triet~".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu ((hien cac) OR (hieu cac)) bao van dinh vai cua triet*.