Perhaps you should try some spelling variations:
"supply africa conservation efforts." » "supply american conservation efforts.", "supply africa cooperation efforts.", "supply area conservation efforts."
"supply south integration series." » "supply south integration services.", "supply south interaction series.", "supply south integration server.", "supply youth integration series.", "supply about integration series.", "supply dutch integration series.", "supply southern integration series.", "supply costs integration series.", "supply cost integration series."

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: "((\"supply south integration series.\") OR (\"supply africa conservation efforts.\"))~".
• Removing quotes may allow a broader search: (( supply south integration series. ) OR ( supply africa conservation efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("supply south integration series.") OR ("supply africa conservation efforts."))*.