Perhaps you should try some spelling variations:
edward clark » edward clarke, edward ward, edward clive
brian black » bruijn black, asian black, urban black
ewan clark » edwin clark, evan clarke
ian clark » iain clark, brian clark, ann clark
a clark » a clarke, _ clark, j clark
rugby » ruby, rigby

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((((ian clark) OR (brian black))) OR (a clark))) OR (((ewan clark) OR (edward clark)))) (rugby union).
• Adding a wildcard symbol may retrieve word variants: ((((((ian clark) or (brian black))) or (a clark))) or (((ewan clark) or (edward clark)))) (rugby union)*.