Perhaps you should try some spelling variations:
des bundesministeriums » das bundesministerium (Expand Search)
des bundesministers » das bundesministerium (Expand Search)
deutsche erbauer » deutsche bauern (Expand Search), deutsche frauen (Expand Search), deutschen bauern (Expand Search)
fur deutsche » fur ostdeutsche (Expand Search), der deutschen (Expand Search), die deutsche (Expand Search)

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: publikationsstelle ((des bundesministeriums) OR (des bundesministers)) fur deutsche erbauer~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "publikationsstelle ((des bundesministeriums) OR (des bundesministers)) fur deutsche erbauer".
• Adding a wildcard symbol may retrieve word variants: publikationsstelle ((des bundesministeriums) OR (des bundesministers)) fur deutsche erbauer*.