Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
su triet » su viet, su tien, ve triet
va triet » va thiet, va trien, ve 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 ty » sach y, sach tu, sach thu
van anh » van thanh, tuan anh, van minh
ty lang » tay lang, ty xang, ty hang
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 ty lang xa hoi. hieu viec cac tac ((ban hanh) or (van anh)) vi ((va triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty lang xa hoi. hieu viec cac tac ((ban hanh) OR (van anh)) vi ((va triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: su sach ty lang xa hoi. hieu viec cac tac ((ban hanh) or (van anh)) vi ((va triet) or (su triet))*.