Perhaps you should try some spelling variations:
"michael wells author" » "michael della author", "michael kelly author", "michael weiss author", "michael cells author", "michael cells authors", "michael fellows author"
"michael only author" » "michael one author", "michael orey author", "michael odell author", "michael any author", "michael cowley author"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"michael wells author\") OR (\"michael only author\"))".
• Removing quotes may allow a broader search: (( michael wells author ) OR ( michael only author )).
• Adding a wildcard symbol may retrieve word variants: (("michael wells author") OR ("michael only author"))*.