Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van hanh » van thanh, ban hanh, van anh
hanh hai » thanh hai, nhanh hai, hang hai
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va
xuc van » duc van, luc van, xuc ban
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
su cac » tu cac, su cao, su can

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

• Performing a fuzzy search may retrieve terms with similar spellings: su cac ky nang xa hoi. ((hieu ve) or (hieu van)) cam xuc van hanh hai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky nang xa hoi. ((hieu ve) OR (hieu van)) cam xuc van hanh hai ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: su cac ky nang xa hoi. ((hieu ve) or (hieu van)) cam xuc van hanh hai ((cua tre) or (cuu tre))*.