Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
xuc van » duc van, luc van, vuc van
vai cua » dai cua, hai cua, lai cua
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
va dao » ca dao
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 sac ky nang xa hoi. hieu va dao ((xuc van) or (duc tan)) hanh ((vi cua) OR (vai cua)) viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang xa hoi. hieu va dao ((xuc van) OR (duc tan)) hanh ((vi cua) OR (vai cua)) viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky nang xa hoi. hieu va dao ((xuc van) or (duc tan)) hanh ((vi cua) OR (vai cua)) viet".
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang xa hoi. hieu va dao ((xuc van) or (duc tan)) hanh ((vi cua) OR (vai cua)) viet*.