Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
viec nam » viet nam, viec lam, vien nam
nam thuc » nam thuoc, am thuc, nam thu
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
thuc va » thuc vat, thuc dan, thuc day
va hanh » van hanh, va thanh, va danh
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang

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 v nang xa hoi. hieu viec nam thuc va hanh ((lai chau) or (dai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach v nang xa hoi. hieu viec nam thuc va hanh ((lai chau) OR (dai cua)) triet.
• Adding a wildcard symbol may retrieve word variants: su sach v nang xa hoi. hieu viec nam thuc va hanh ((lai chau) or (dai cua)) triet*.