Perhaps you should try some spelling variations:
annual lectures » annual lecture, annual returns, annual legumes
annex lectures » tanner lectures, index lecturers, channels lectures
index lectures » index lecturers, indexes lecturers, index apertures
berkeley six » berkeley unix, berkeley son, berkeley xi
six lectures » _ lectures, six letters

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 ((((annex lectures) OR (index lectures))) OR (annual lectures)) ) OR ( berkeley six lectures )).
• Adding a wildcard symbol may retrieve word variants: (( berkeley ((((annex lectures) or (index lectures))) or (annual lectures)) ) or ( berkeley six lectures ))*.