Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
nang xa » nang x, lang xa, nang ma
cac xuc » cac nuoc, chat xuc, cac cuoc
va hanh » van hanh, va thanh, va danh
hai cua » thai cua, dai cua, lai cua
hoi cua » hoi chuc
su xac » pu xac, su cac
xac ky » cac ky, sac ky, bac ky

You may be able to get more results by adjusting your search query.

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