Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
cham xuc » cam xuc, chat xuc, cham soc
vu sach » vu bach, su sach
vang xa » lang xa, mang xa, ang xa
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
y vang » ly vang
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: ((vu sach) OR (vu khach)) y vang xa hoi. hieu ve cham xuc va hanh ((vi cua) or (vai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu khach)) y vang xa hoi. hieu ve cham xuc va hanh ((vi cua) OR (vai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) OR (vu khach)) y vang xa hoi. hieu ve cham xuc va hanh ((vi cua) or (vai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) OR (vu khach)) y vang xa hoi. hieu ve cham xuc va hanh ((vi cua) or (vai cua)) tre*.