Perhaps you should try some spelling variations:
"modern birkhauser classes" » "modern brauer classes", "peter birkhauser classes", "von birkhauser classes"
"modern birkhauser plates" » "peter birkhauser plates", "von birkhauser plates", "modern birkhauser peter", "modern birkhauser completed"

Try widening your search to All Fields.

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"modern birkhauser classes\") OR (\"modern birkhauser plates\"))".
• Removing quotes may allow a broader search: (( modern birkhauser classes ) OR ( modern birkhauser plates )).
• Adding a wildcard symbol may retrieve word variants: (("modern birkhauser classes") OR ("modern birkhauser plates"))*.