Perhaps you should try some spelling variations:
"particle and nuclear physical" » "particle and nuclear physics", "particle and nonlinear physical", "particle and nuclear optical"
"article and nuclear physical" » "article and nuclear physics", "article and nonlinear physical", "article and nuclear optical"
"article and nuclear medical" » "article and nuclear medicine", "article and nuclear material"

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: (("particle and nuclear physical") OR ((("article and nuclear physical") OR ("article and nuclear medical")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"particle and nuclear physical\") or (((\"article and nuclear physical\") OR (\"article and nuclear medical\"))))".
• Removing quotes may allow a broader search: (( particle and nuclear physical ) or ((( article and nuclear physical ) OR ( article and nuclear medical )))).
• Adding a wildcard symbol may retrieve word variants: (("particle and nuclear physical") or ((("article and nuclear physical") OR ("article and nuclear medical"))))*.