Perhaps you should try some spelling variations:
"ronald f. adler" » "ronald _. adler" (Expand Search), "ronald a. adler" (Expand Search), "ronald j. adler" (Expand Search)
"ronald d. adler" » "donald d. adler" (Expand Search), "ronald _. adler" (Expand Search), "ronald a. adler" (Expand Search)
"ronald c. adler" » "donald e. adler" (Expand Search), "donald r. adler" (Expand Search), "donald w. adler" (Expand Search)
"ronald g. adler" » "donald e. adler" (Expand Search), "donald r. adler" (Expand Search), "donald w. adler" (Expand Search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("ronald f. adler") OR ("ronald d. adler"))) OR ((("ronald c. adler") OR ("ronald g. adler"))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"ronald f. adler\") OR (\"ronald d. adler\"))) OR (((\"ronald c. adler\") OR (\"ronald g. adler\"))))".
• Removing quotes may allow a broader search: (((( ronald f. adler ) OR ( ronald d. adler ))) OR ((( ronald c. adler ) OR ( ronald g. adler )))).
• Adding a wildcard symbol may retrieve word variants: (((("ronald f. adler") OR ("ronald d. adler"))) OR ((("ronald c. adler") OR ("ronald g. adler"))))*.