Perhaps you should try some spelling variations:
"animal science theories e:, applied sciences" » "animal science theory e:, applied sciences", "animal science three e:, applied sciences", "animal science theories et:, applied sciences", "animal science theories 2:, applied sciences", "animal science theories eft:, applied sciences"
"animal science theories 1:, applied sciences" » "animal science theory 1:, applied sciences", "animal science three 1:, applied sciences", "animal science theories 3:, applied sciences", "animal science theories 2:, applied sciences"
"animal science theories 4:, applied sciences" » "animal science theory 4:, applied sciences", "animal science three 4:, applied sciences", "animal science theories 3:, applied sciences"

Try widening your search to All Fields.

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• If you are trying to use Boolean operators, they must be ALL CAPS: (("animal science theories e:, applied sciences") OR ((("animal science theories 1:, applied sciences") OR ("animal science theories 4:, applied sciences")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"animal science theories e:, applied sciences\") or (((\"animal science theories 1:, applied sciences\") OR (\"animal science theories 4:, applied sciences\"))))".
• Removing quotes may allow a broader search: (( animal science theories e:, applied sciences ) or ((( animal science theories 1:, applied sciences ) OR ( animal science theories 4:, applied sciences )))).
• Adding a wildcard symbol may retrieve word variants: (("animal science theories e:, applied sciences") or ((("animal science theories 1:, applied sciences") OR ("animal science theories 4:, applied sciences"))))*.