Perhaps you should try some spelling variations:
"nuclear physics, heavy mesons, hadrons" » "nuclear physics, heavy metals, hadrons", "nuclear physics, heavy ions, hadrons"
"nuclear physics, heavy sons, hadrons" » "nuclear physics, heavy ions, hadrons"
"nuclear physics, heavy sour, hadrons" » "nuclear physics, heavy hour, hadrons", "nuclear physics, heavy hours, hadrons", "nuclear physics, heavy smoker, hadrons"

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: (((("nuclear physics, heavy sons, hadrons") OR ("nuclear physics, heavy mesons, hadrons"))) OR ("nuclear physics, heavy sour, hadrons")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nuclear physics, heavy sons, hadrons\") OR (\"nuclear physics, heavy mesons, hadrons\"))) or (\"nuclear physics, heavy sour, hadrons\"))".
• Removing quotes may allow a broader search: (((( nuclear physics, heavy sons, hadrons ) OR ( nuclear physics, heavy mesons, hadrons ))) or ( nuclear physics, heavy sour, hadrons )).
• Adding a wildcard symbol may retrieve word variants: (((("nuclear physics, heavy sons, hadrons") OR ("nuclear physics, heavy mesons, hadrons"))) or ("nuclear physics, heavy sour, hadrons"))*.