Perhaps you should try some spelling variations:
"russia / history / peter iii, 1762" » "russia / history / peter i, 1762", "russia / history / peter ii, 1762", "russia / history / peter _i, 1762", "russia / history / peter ai, 1762"
"russian / history / peter ii, 1762" » "russian / history / peter i, 1762", "russian / history / peter _, 1762", "russian / history / peter a, 1762"

Try widening your search to All Fields.

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: (("russian / history / peter ii, 1762") OR ("russia / history / peter iii, 1762")).
• Removing quotes may allow a broader search: (( russian / history / peter ii, 1762 ) or ( russia / history / peter iii, 1762 )).
• Adding a wildcard symbol may retrieve word variants: (("russian / history / peter ii, 1762") or ("russia / history / peter iii, 1762"))*.