Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
vien cac » vien bach, vien dai, vien da
van hanh » van thanh, ban hanh, van anh
ve triet » va trien
su triet » su viet, su tien
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
cac toc » cac toi, cac nuoc, cac thoi
toc van » hoc van, toc san, tac van
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky nang x hoi. hieu vien cac toc van hanh vi ((ve triet) OR (su triet))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky nang x hoi. hieu vien cac toc van hanh vi ((ve triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: vu sach ky nang x hoi. hieu vien cac toc van hanh vi ((ve triet) OR (su triet))*.