Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec sach » viet sach, vien bach, dien sach
sach nuoc » sach duoc, cac nuoc, bach tuoc
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, ban hanh
va danh » va dinh, va dan, dia danh
y nang » ky nang, ly nang, v nang
de cua » le cua, dieu cua
te cua » tue cua, le cua

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 y nang xa hoi. hieu viec sach nuoc ((va hanh) or (va danh)) ((de cua) or (te cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu viec sach nuoc ((va hanh) OR (va danh)) ((de cua) OR (te cua)) triet.
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu viec sach nuoc ((va hanh) or (va danh)) ((de cua) or (te cua)) triet*.