Perhaps you should try some spelling variations:
"geschafte zu poetica" » "geschafte zur poetica", "geschafte fur poetica", "geschafte _ poetica", "geschafte la poetica", "geschafte de poetica", "geschafte a poetica"
"geschafte e poetica" » "geschafte _ poetica", "geschafte 5 poetica", "geschafte 9 poetica", "geschafte de poetica", "geschafte et poeticae", "geschafte _ poetical"
"leithefte zu poetica" » "leithefte la poetica", "leithefte de poetica", "leithefte a poetica", "beihefte zu poetica", "lesehefte zu poetica", "testhefte zu poetica"

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: (("leithefte zu poetica") OR ((("geschafte zu poetica") OR ("geschafte e poetica")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"leithefte zu poetica\") or (((\"geschafte zu poetica\") OR (\"geschafte e poetica\"))))".
• Removing quotes may allow a broader search: (( leithefte zu poetica ) or ((( geschafte zu poetica ) OR ( geschafte e poetica )))).
• Adding a wildcard symbol may retrieve word variants: (("leithefte zu poetica") or ((("geschafte zu poetica") OR ("geschafte e poetica"))))*.