Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cao xuc » cam xuc, cao duc, cao suc
va dung » van dung, va duong, vat dung
tai cua » thai cua, tai cuc, tri cua
cua tre » cua te, cuu tre, cua triet
sac ky » cac ky
va cao » va cac, va co, va dao
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sai ky) OR (sac ky)) nang xa hoi. hieu va cao xuc va dung tai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sai ky) OR (sac ky)) nang xa hoi. hieu va cao xuc va dung tai cua tre".
• Adding a wildcard symbol may retrieve word variants: su ((sai ky) OR (sac ky)) nang xa hoi. hieu va cao xuc va dung tai cua tre*.