Perhaps you should try some spelling variations:
oper communication » open communication, proper communication, power communication
developpement en » developpement et, developpement des, developpement de
modes variation » does variation, more variation, modern variations
apology modes » apology do's, apology mea
der oper » der opfer, der oder
3 does » 13 does, 4 does, 1 does
2 does » 4 does

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: "apology modes variation _ der oper communication ((3 does) OR (2 does)) developpement en afrique.~".
• Adding a wildcard symbol may retrieve word variants: apology modes variation _ der oper communication ((3 does) OR (2 does)) developpement en afrique.*.