Perhaps you should try some spelling variations:
nang xa » nang x, lang xa, nang ma
hieu va » lieu va, hieu qua
cao tuc » dao tuc, cao duc, cao suc
va danh » va dinh, va dan, va hanh
vai cua » dai cua, lai cua, bai cua
hai cua » thai cua, dai cua, hoi cua
tu cai » tu cac, tu can, tu bai
cai ky » cao ky, cac ky, cam ky
va cao » va cac, va co, va dao
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cai ky nang xa hoi. hieu va cao tuc va danh ((vai cua) OR (hai cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cai ky nang xa hoi. hieu va cao tuc va danh ((vai cua) OR (hai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu cai ky nang xa hoi. hieu va cao tuc va danh ((vai cua) OR (hai cua)) tre*.