Perhaps you should try some spelling variations:
"handbuch uber werkstoffprufung" » "handbuch der werkstoffprufung", "handbuch die werkstoffprufung", "handbuch b werkstoffprufung", "handbuch des werkstoffprufung"
"handbuch und werkstoffprufung" » "handbuch band werkstoffprufung", "handbuch eine werkstoffprufung", "handbuch der werkstoffprufung"

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: "((\"handbuch und werkstoffprufung\") OR (\"handbuch uber werkstoffprufung\"))".
• Removing quotes may allow a broader search: (( handbuch und werkstoffprufung ) OR ( handbuch uber werkstoffprufung )).
• Adding a wildcard symbol may retrieve word variants: (("handbuch und werkstoffprufung") OR ("handbuch uber werkstoffprufung"))*.