Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
nam xuc » cam xuc, nam xua, nam thuc
va tinh » may tinh
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
co hoi » co hoc, co loi
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: vu sac ky nang ((co hoi) or (xa hoi)). hieu van nam xuc va tinh ((vi cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang ((co hoi) OR (xa hoi)). hieu van nam xuc va tinh ((vi cua) OR (di cua)) tre.
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang ((co hoi) or (xa hoi)). hieu van nam xuc va tinh ((vi cua) or (di cua)) tre*.