Perhaps you should try some spelling variations:
berkeley index » berkeley andrew, berkeley one, berkeley und
berkeley annex » berkeley ann, berkeley andrew, berkeley june
berkeley unix » berkeley usa
unix lectures » union lectures, six lectures, munich lectures

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: (( ((berkeley index) OR (berkeley annex)) lectures ) OR ( berkeley unix lectures )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((berkeley index) OR (berkeley annex)) lectures ) or ( berkeley unix lectures ))".
• Adding a wildcard symbol may retrieve word variants: (( ((berkeley index) OR (berkeley annex)) lectures ) or ( berkeley unix lectures ))*.