Perhaps you should try some spelling variations:
sang ky » sang kyo, dang ky, tang ky
hieu ve » hieu va, hieu van
cac xuc » cac nuoc, chat xuc, cac cuoc
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua
va xa » va xac, va xay, va xu

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

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