Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
nang xa » nang x, lang xa, nang ma
van cac » van hac, van cau, van bac
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
hai cua » thai cua, hoi cua, lai cua
su sai » su tai, su dai, su mai
su hai » su tai
xuc va » duc va, tuc va, luc va

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) or (su hai)) ky nang xa hoi. hieu van cac xuc va hanh ((hai cua) OR (dai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sai) OR (su hai)) ky nang xa hoi. hieu van cac xuc va hanh ((hai cua) OR (dai cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sai) or (su hai)) ky nang xa hoi. hieu van cac xuc va hanh ((hai cua) OR (dai cua)) te".
• Adding a wildcard symbol may retrieve word variants: ((su sai) or (su hai)) ky nang xa hoi. hieu van cac xuc va hanh ((hai cua) OR (dai cua)) te*.