Perhaps you should try some spelling variations:
navigation services » sanitation services, information services
integration report » integration efforts, innovation report
air navigation » _ navigation
support air » support agri, support a, support act
supply de » supply a, supply 3, supply 4

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: (( ((supply de) OR (supply _)) integration report. ) OR ( support air navigation services. ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( ((supply de) OR (supply _)) integration report. ) or ( support air navigation services. ))~".
• Adding a wildcard symbol may retrieve word variants: (( ((supply de) OR (supply _)) integration report. ) or ( support air navigation services. ))*.