Perhaps you should try some spelling variations:
"handbook of experimentellen pharmacologic" » "handbook of experimentelle pharmakologie", "handbook of experimental pharmacologic", "handbook of experimentellen pathologie"
"handbook of experimentellen dermatologie" » "handbook of experimenteller dermatologie", "handbook of experimentelle teratologie", "handbook of experimentelle gerontologie"
"handbook of experimental pharmacology" » "handbook of experimental psychology"

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: (("handbook of experimentellen pharmakologie") OR ((((("handbook of experimentellen pharmacologic") OR ("handbook of experimental pharmacology"))) OR ("handbook of experimentellen dermatologie")))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"handbook of experimentellen pharmakologie\") or (((((\"handbook of experimentellen pharmacologic\") OR (\"handbook of experimental pharmacology\"))) or (\"handbook of experimentellen dermatologie\"))))".
• Removing quotes may allow a broader search: (( handbook of experimentellen pharmakologie ) or ((((( handbook of experimentellen pharmacologic ) OR ( handbook of experimental pharmacology ))) or ( handbook of experimentellen dermatologie )))).
• Adding a wildcard symbol may retrieve word variants: (("handbook of experimentellen pharmakologie") or ((((("handbook of experimentellen pharmacologic") OR ("handbook of experimental pharmacology"))) or ("handbook of experimentellen dermatologie"))))*.