Perhaps you should try some spelling variations:
costa sharing » cost sharing, data sharing, loss sharing
sharing a » sharing _
der bond » term bond, der bose, par bond
da costa » _ costa, a cost
kong sek » kong weak, kong k, kong lee
der box » der bose
sar » sara, star, saur

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

• Performing a fuzzy search may retrieve terms with similar spellings: wann ((der bond) OR (der box)) da costa sharing a ((kong sek) or (kong sar)) ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: wann ((der bond) OR (der box)) da costa sharing a ((kong sek) OR (kong sar)) ;*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "wann ((der bond) OR (der box)) da costa sharing a ((kong sek) or (kong sar)) ;*".