Perhaps you should try some spelling variations:
individual patients » individual patient, individual poets, individual papers
individual places » individual place, individual plans, individual phases
individual plants » individual plant, individual poets, individual papers

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: strategische aspekte of ((individual places) OR (((individual plants) OR (individual patients)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "strategische aspekte of ((individual places) or (((individual plants) OR (individual patients))))".
• Adding a wildcard symbol may retrieve word variants: strategische aspekte of ((individual places) or (((individual plants) OR (individual patients))))*.