Perhaps you should try some spelling variations:
"4x400 nuestros relay" » "4x400 nuestro relay", "4x400 nuestra relay", "4x400 nuestros rely", "4x400 nuestros delay", "4x400 nuestros rela"
"4x400 muestras pelay" » "4x400 muestra pelay", "4x400 nuestras pelay", "4x400 muestran pelay", "4x400 muestras pelayo", "4x400 muestras play", "4x400 muestras pela"
"4x400 metres delas" » "4x400 metros delas", "4x400 metres demas", "4x400 metres dela", "4x400 metres elas"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("4x400 nuestros relay") OR ("4x400 muestras pelay"))) OR ("4x400 metres delas"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"4x400 nuestros relay\") OR (\"4x400 muestras pelay\"))) OR (\"4x400 metres delas\"))".
• Removing quotes may allow a broader search: (((( 4x400 nuestros relay ) OR ( 4x400 muestras pelay ))) OR ( 4x400 metres delas )).
• Adding a wildcard symbol may retrieve word variants: (((("4x400 nuestros relay") OR ("4x400 muestras pelay"))) OR ("4x400 metres delas"))*.