Perhaps you should try some spelling variations:
michael kelly » michael della, michael heller, michael kirby
kelly author » kelly anthony, henry author, only author
michael dove » michael gove, michael doane, michael doret
dove author » code author, foe author, home author

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: (( michael kelly author ) OR ( michael dove author ))*.