Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec cac » vien cac, viec cua, viec lam
van hanh » van thanh, ban hanh, van anh
ve triet » va trien
su triet » su viet, su tien
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
cac hoc » cach hoc, cac hop, bac hoc
hoc van » hoc dan, hoc va, hoc vat
hanh ve » hanh vi, hanh va, hanh kem

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: "su sach ky nang xa hoi. hieu viec cac hoc van hanh ve ((ve triet) OR (su triet))~".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu viec cac hoc van hanh ve ((ve triet) OR (su triet))*.