Perhaps you should try some spelling variations:
"neuphanomenologische untersuchung" » "phanomenologische untersuchung", "neuropharmakologische untersuchung", "phonologische untersuchung"
"phanomenologische untersuchungen" » "phanomenologische untersuchung", "pharmakologische untersuchungen", "hamatologische untersuchungen"
"rontgenologische untersuchungen" » "rontgenologische untersuchung", "rontgenographische untersuchungen", "angiologische untersuchungen"

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