Perhaps you should try some spelling variations:
samuel hartlib » samuel martin
samuel charles » samuel chandler
samuel harris » samuel hayes, samuel warren, samuel hardy
charles chew » charles chaz, charles chi, charles chui
clarke chew » clarke ch, clarke cheryl, clarke chris

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: (( ((samuel harris) OR (samuel hartlib)) cohen ) OR ((( samuel charles chew ) OR ( samuel clarke chew )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((samuel harris) OR (samuel hartlib)) cohen ) or ((( samuel charles chew ) or ( samuel clarke chew ))))".
• Adding a wildcard symbol may retrieve word variants: (( ((samuel harris) OR (samuel hartlib)) cohen ) or ((( samuel charles chew ) or ( samuel clarke chew ))))*.