Perhaps you should try some spelling variations:
"advanced training in physics" » "advanced learning in physics", "advanced planning in physics"
"advanced testing in physics" » "advanced editing in physics", "advanced routing in physics", "advanced reporting in physics"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"advanced testing in physics\") OR (\"advanced training in physics\"))".
• Removing quotes may allow a broader search: (( advanced testing in physics ) OR ( advanced training in physics )).
• Adding a wildcard symbol may retrieve word variants: (("advanced testing in physics") OR ("advanced training in physics"))*.