Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
sach tham » sach nha
sach thu » sach thue, sach thieu, cach thuc
viec cac » vien cac, viec cua, viec lam
cua viet » ca viet, hoa viet, cua vat
nang xa » nang x, lang xa, nang ma
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di 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 thu) OR (sach tham)) nang xa hoi. nhieu viec cac xuc va hanh vi cua viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach thu) OR (sach tham)) nang xa hoi. nhieu viec cac xuc va hanh vi cua viet".
• Adding a wildcard symbol may retrieve word variants: su ((sach thu) OR (sach tham)) nang xa hoi. nhieu viec cac xuc va hanh vi cua viet*.