Perhaps you should try some spelling variations:
later proceedings » late proceedings, water proceedings, matter proceedings
lace proceedings » late proceedings, space proceedings, chace proceedings
de later » de latere, de laser, code later
de lace » de lacte, de lacy, de lage

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: (( de later proceedings in mathematics ) OR ( de lace proceedings in mathematics )).
• Adding a wildcard symbol may retrieve word variants: (( de later proceedings in mathematics ) or ( de lace proceedings in mathematics ))*.