Perhaps you should try some spelling variations:
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
su sai » su tai, su hai, su dai
sai ky » sac ky
ha hoi » hoa hoi, xa hoi, va hoi
xuc va » duc va, tuc va, luc va
vi cua » vai cua
di cua » dai cua, doi cua, de 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 sai ky nang ((ha hoi) OR (ha noi)). hieu va cac xuc va hanh ((vi cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sai ky nang ((ha hoi) OR (ha noi)). hieu va cac xuc va hanh ((vi cua) OR (di cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sai ky nang ((ha hoi) OR (ha noi)). hieu va cac xuc va hanh ((vi cua) or (di cua)) tre*".