Perhaps you should try some spelling variations:
"leithefte de poetica" » "leithefte zu poetica", "leithefte de politica", "leithefte la poetica", "leithefte de politicas", "leithefte d_ poetical", "leithefte da poetical"
"geschafte zu poetica" » "geschafte zur poetica", "geschafte fur poetica", "geschafte _ poetica", "geschafte la poetica", "geschafte a poetica", "geschafte da poetica"
"leithefte e poetica" » "leithefte zu poetica", "leithefte _ poetical", "leithefte a poetical", "leithefte e politica"

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 e poetica") OR ("leithefte de poetica"))) OR ("geschafte zu poetica")).
• Removing quotes may allow a broader search: (((( leithefte e poetica ) or ( leithefte de poetica ))) or ( geschafte zu poetica )).
• Adding a wildcard symbol may retrieve word variants: (((("leithefte e poetica") or ("leithefte de poetica"))) or ("geschafte zu poetica"))*.