Perhaps you should try some spelling variations:
copper peninsula » lower peninsula
michigan copper » michigan lower
south america » south african
south africa » north africa
a tenure » _ tenure, 2 tenure, 8 tenure
indians » indian, indiana, indias

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

• Performing a fuzzy search may retrieve terms with similar spellings: indians of ((south america) OR (south africa)) a tenure michigan copper peninsula~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "indians of ((south america) OR (south africa)) a tenure michigan copper peninsula".
• Adding a wildcard symbol may retrieve word variants: indians of ((south america) OR (south africa)) a tenure michigan copper peninsula*.