Perhaps you should try some spelling variations:
graphical methods » graphical method (Expand search), graphic methods (Expand search), geophysical methods (Expand search)
costs processes » loss processes (Expand search), crisis processes (Expand search), cosine processes (Expand search)
decrease costs » decreasing costs (Expand search), decreases post (Expand search), disease costs (Expand search)
methods python » methods action (Expand search), pythons python (Expand search), methods method (Expand search)
the graphical » the graphic (Expand search), the geographical (Expand search), the biographical (Expand search)
decrease and » decreases and (Expand search), decrease in (Expand search), decrease of (Expand search)
and decrease » and decreases (Expand search), and decreased (Expand search), and increase (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 decrease costs processes ) OR ( the graphical methods python programming ))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease and decrease costs processes ) OR ( the graphical methods python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease and decrease costs processes ) OR ( the graphical methods python programming ))*.