Perhaps you should try some spelling variations:
"biomedical metrology" » "biomedical ontology", "biomedical technology", "optical metrology"
"medical meteorology" » "medieval meteorology", "medical methodology", "medical metrology"
"medical astrology" » "medieval astrology", "medical metrology", "judicial astrology"
"medicine ontology" » "medicine pathology", "medicine sociology", "medicine biology"

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: (((("medical astrology") OR ("medicine ontology"))) OR ((("biomedical metrology") OR ("medical meteorology")))).
• Removing quotes may allow a broader search: (((( medical astrology ) or ( medicine ontology ))) or ((( biomedical metrology ) or ( medical meteorology )))).
• Adding a wildcard symbol may retrieve word variants: (((("medical astrology") or ("medicine ontology"))) or ((("biomedical metrology") or ("medical meteorology"))))*.