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

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 dang xay hoi. hieu viec cac tac ((ban hanh) or (van anh)) vi va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky dang xay hoi. hieu viec cac tac ((ban hanh) OR (van anh)) vi va triet.
• Adding a wildcard symbol may retrieve word variants: su sach ky dang xay hoi. hieu viec cac tac ((ban hanh) or (van anh)) vi va triet*.