Perhaps you should try some spelling variations:
"solid state politics literature general" » "solid state polite literature general", "solid state polish literature general", "solid states politics literature general", "solid state policy literature general"
"solid state physics literature gender" » "solid state physik literatur gender", "solid state basics literature gender", "solid state physics lecture gender", "solid state physics literature index", "solid state physics literature modern", "solid state physics literature german", "solid space physics literature gender"
"solid state physics literature general" » "solid state physik literatur general", "solid state basics literature general", "solid state physics lecture general", "solid space physics literature general"

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: (("solid state physics literature gender") OR ((("solid state physics literature general") OR ("solid state politics literature general")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"solid state physics literature gender\") or (((\"solid state physics literature general\") OR (\"solid state politics literature general\"))))".
• Removing quotes may allow a broader search: (( solid state physics literature gender ) or ((( solid state physics literature general ) OR ( solid state politics literature general )))).
• Adding a wildcard symbol may retrieve word variants: (("solid state physics literature gender") or ((("solid state physics literature general") OR ("solid state politics literature general"))))*.