Perhaps you should try some spelling variations:
"support 1 internationale seminar." » "support 1 international seminar.", "support 1 international seminars.", "support 1 internationale bernard.", "support 2 internationale seminar.", "support 3 internationale seminar.", "support 10 internationale seminar.", "support 13 internationale seminar.", "support 15 internationale seminar."
"support _gri integration some." » "support grid integration some.", "support der integration some.", "support iii integration some.", "support _gri integration south.", "support _gri integration soziale.", "support _gri integration social.", "support agri integration some.", "support _ integration some."

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"support 1 internationale seminar.\") OR (\"support _gri integration some.\"))~".
• Removing quotes may allow a broader search: (( support 1 internationale seminar. ) OR ( support _gri integration some. ))~.
• Adding a wildcard symbol may retrieve word variants: (("support 1 internationale seminar.") OR ("support _gri integration some."))*.