Perhaps you should try some spelling variations:
decreases these » decreases the (Expand search), decreases th2 (Expand search), decreases pest (Expand search)
these processes » the processes (Expand search), thermal processes (Expand search), change processes (Expand search)
density python » density method (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
tree density » the density (Expand search), tree diversity (Expand search), bone density (Expand search)
python tree » python redes (Expand search)

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: (( decrease AND decreases these processes ) OR ( python tree density python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease and decreases these processes ) OR ( python tree density python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease and decreases these processes ) OR ( python tree density python programming ))*.