Perhaps you should try some spelling variations:
"4x400 mestres relay" » "4x400 mestre relay", "4x400 muestreos relay", "4x400 semestres relay", "4x400 mestres rela", "4x400 mestres delay", "4x400 mestres pelay", "4x400 mestrenos relay"
"4x400 estres relay" » "4x400 estres rela", "4x400 estres delay", "4x400 estres pelay", "4x400 estrenos relay"
"4x400 metros delas" » "4x400 metro delas", "4x400 petros delas", "4x400 maestros delas", "4x400 metros demas", "4x400 metros dela", "4x400 metros degas"

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 estres relay"))) OR ("4x400 metros delas"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"4x400 mestres relay\") OR (\"4x400 estres relay\"))) OR (\"4x400 metros delas\"))*".
• Removing quotes may allow a broader search: (((( 4x400 mestres relay ) OR ( 4x400 estres relay ))) OR ( 4x400 metros delas ))*.