Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
van bac » van bao, van hac, dan bac
va hanh » van hanh, va thanh, va danh
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
le cua » ly 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 sac ky nang xa hoi. hieu ((van bac) OR (van ban)) xuc va hanh ((vi cua) or (le cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu ((van bac) OR (van ban)) xuc va hanh ((vi cua) OR (le cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang xa hoi. hieu ((van bac) OR (van ban)) xuc va hanh ((vi cua) or (le cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu ((van bac) OR (van ban)) xuc va hanh ((vi cua) or (le cua)) tre*.