Perhaps you should try some spelling variations:
"animal science theories b:, physics" » "animal science theory b:, physics", "animal science three b:, physics", "animal science theories 3:, physics", "animal science theories 1:, physics", "animal science theories 2:, physics"
"animal science theories 4:, physics" » "animal science theory 4:, physics", "animal science three 4:, physics", "animal science theories 3:, physics"

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: "((\"animal science theories b:, physics\") OR (\"animal science theories 4:, physics\"))".
• Removing quotes may allow a broader search: (( animal science theories b:, physics ) OR ( animal science theories 4:, physics )).
• Adding a wildcard symbol may retrieve word variants: (("animal science theories b:, physics") OR ("animal science theories 4:, physics"))*.