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