Perhaps you should try some spelling variations:
"neuropharmakologische untersuchung" » "neurophysiologische untersuchung", "tierpharmakologische untersuchungen", "zellpharmakologische untersuchungen"
"neuphanomenologische untersuchung" » "phanomenologische untersuchung", "phanomenologische untersuchungen", "phonologische untersuchung"

Try widening your search to All Fields.

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