Perhaps you should try some spelling variations:
"4x400 mestres relay" » "4x400 estres relay", "4x400 mestre relay", "4x400 muestreos relay", "4x400 mestres delay", "4x400 mestres reay", "4x400 mestres reglay", "4x400 mestres velay"
"4x400 mestres rela" » "4x400 estres rela", "4x400 mestre rela", "4x400 muestreos rela", "4x400 mestres regla", "4x400 mestres vela", "4x400 mestres dela"
"4x400 metres pelay" » "4x400 metros pelay", "4x400 metres pelayo", "4x400 metres pelaya", "4x400 metres play"

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

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