Perhaps you should try some spelling variations:
"import dutch international seminar." » "import dutch international series.", "import dutch international standard.", "import dutch international mining.", "import durch internationale seminar.", "import 4th international seminar.", "import 5th international seminar.", "import duty international seminar.", "import dutie international seminar.", "import duties international seminar."
"supply 4 testing services." » "supply 4 existing services.", "supply 4 lending services.", "supply 4 training services.", "supply 3 testing services.", "supply _ testing services.", "supply a testing services."

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("import dutch international seminar.") or ("supply 4 testing services."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("import dutch international seminar.") OR ("supply 4 testing services.")).
• Removing quotes may allow a broader search: (( import dutch international seminar. ) or ( supply 4 testing services. )).
• Adding a wildcard symbol may retrieve word variants: (("import dutch international seminar.") or ("supply 4 testing services."))*.