Perhaps you should try some spelling variations:
"supplementary problems" » "elementary problems", "complementarity problems", "supplementary notes"
"supplementary tables" » "supplementary notes", "supplementary topics"
"elementary particles" » "elementary articles", "elementary particle"

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: (("elementary particles") OR ((("supplementary tables") OR ("supplementary problems")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"elementary particles\") or (((\"supplementary tables\") OR (\"supplementary problems\"))))".
• Removing quotes may allow a broader search: (( elementary particles ) or ((( supplementary tables ) OR ( supplementary problems )))).
• Adding a wildcard symbol may retrieve word variants: (("elementary particles") or ((("supplementary tables") OR ("supplementary problems"))))*.