Perhaps you should try some spelling variations:
"supply river navigation services." » "supply river sanitation services.", "supply river sanitation service.", "supply river information services.", "supply air navigation services.", "supply side navigation services.", "supply water navigation services.", "supply sides navigation services."
"supply trade integration series." » "supply trade integration theories.", "supply trade integrating services.", "supply trade integration schemes.", "supply side integration series.", "supply case integration series."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("supply trade integration series.") or ("supply river navigation services."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("supply trade integration series.") OR ("supply river navigation services.")).
• Removing quotes may allow a broader search: (( supply trade integration series. ) or ( supply river navigation services. )).
• Adding a wildcard symbol may retrieve word variants: (("supply trade integration series.") or ("supply river navigation services."))*.