Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
ve triet » va trien, su triet
va triet » va thiet, va trien, cua triet
viec cac » vien cac, viec cua, viec lam
ban hanh » ban hang
lang xa » lang ha, dang xay, lang van
cac tac » cac toc, cac bac, cac dac
sach ky » sac ky, sach y, sach ty
van anh » van thanh, tuan anh, van minh
ky lang » ky nang, ky dang, ky tang
su sach » so sach, vu sach

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach ky lang xa hoi. hieu viec cac tac ((ban hanh) or (van anh)) vi ((va triet) OR (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky lang xa hoi. hieu viec cac tac ((ban hanh) OR (van anh)) vi ((va triet) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky lang xa hoi. hieu viec cac tac ((ban hanh) or (van anh)) vi ((va triet) OR (ve triet))".
• Adding a wildcard symbol may retrieve word variants: su sach ky lang xa hoi. hieu viec cac tac ((ban hanh) or (van anh)) vi ((va triet) OR (ve triet))*.