Perhaps you should try some spelling variations:
so sang » so sanh, so dang, so lang
sang ky » sang kyo, dang ky, tang ky
cao hoi » cau hoi, co hoi, cao hoc
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc cac » xuc tac, tuc cac, xuc cam
ve cac » va cac, vien cac
va cua » va chua, via cua, ma cua
ca cua » co cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sang ky nang cao hoi. hieu ve cac xuc cac dan ((va cua) or (ca cua)) tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sang ky nang cao hoi. hieu ve cac xuc cac dan ((va cua) OR (ca cua)) tu.
• Adding a wildcard symbol may retrieve word variants: so sang ky nang cao hoi. hieu ve cac xuc cac dan ((va cua) or (ca cua)) tu*.