Perhaps you should try some spelling variations:
vu khach » vu khanh, vu khac, vay khach
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
va hanh » van hanh, va thanh, va danh
vai cua » dai cua, hai cua, lai cua
va cam » va cham, va cac, va cao
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: ((tu sach) or (vu khach)) ky nang xa hoi. hieu va cam xuc va hanh ((vi cua) or (vai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (vu khach)) ky nang xa hoi. hieu va cam xuc va hanh ((vi cua) OR (vai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (vu khach)) ky nang xa hoi. hieu va cam xuc va hanh ((vi cua) or (vai cua)) tre*.