Perhaps you should try some spelling variations:
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"animal science series 10:, physics" » "animal science stories 10:, physics", "animal science theories 10:, physics", "animal sciences serious 10:, physics", "animal science series 3:, physics", "animal science series 2:, physics", "animal science series 30:, physics", "animal science series 20:, physics"
"animal science series 1:, physics" » "animal science stories 1:, physics", "animal science theories 1:, physics", "animal sciences serious 1:, physics", "animal science series 3:, physics", "animal science series 2:, physics"

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: (("nato science services 10:, physics") OR ((("animal science series 10:, physics") OR ("animal science series 1:, physics")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"nato science services 10:, physics\") or (((\"animal science series 10:, physics\") OR (\"animal science series 1:, physics\"))))".
• Removing quotes may allow a broader search: (( nato science services 10:, physics ) or ((( animal science series 10:, physics ) OR ( animal science series 1:, physics )))).
• Adding a wildcard symbol may retrieve word variants: (("nato science services 10:, physics") or ((("animal science series 10:, physics") OR ("animal science series 1:, physics"))))*.