Perhaps you should try some spelling variations:
"support c integration theories." » "support c integration theorems.", "support c integrationstheorie 2.", "support c integration theory.", "support 3 integration theories.", "support 2 integration theories.", "support 4 integration theories.", "support _ integration theories.", "support a integration theories."
"support statt conservation efforts." » "support plant conservation efforts.", "support situ conservation efforts.", "support bat conservation efforts.", "support start conservation efforts.", "support state conservation efforts.", "support staff conservation efforts."

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (("support c integration theories.") OR ("support statt conservation efforts."))~.
• Removing quotes may allow a broader search: (( support c integration theories. ) or ( support statt conservation efforts. ))~.
• Adding a wildcard symbol may retrieve word variants: (("support c integration theories.") or ("support statt conservation efforts."))*.