Perhaps you should try some spelling variations:
linear programmin » linear programming (Expand search), nonlinear programming (Expand search)
increase linear » increased linear (Expand search), increase life (Expand search), increase lender (Expand search)
decrease can » decrease in (Expand search), decrease and (Expand search), decrease at (Expand search)
can increase » an increase (Expand search), and increase (Expand search), an increased (Expand search)
decrease akt » decrease at (Expand search), decrease and (Expand search), decrease after (Expand search)
akt decrease » and decrease (Expand search), not decrease (Expand search), any decrease (Expand search)

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: "(( decrease can increase linear programmin ) OR ( decrease OR decrease akt decrease ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease can increase linear programmin ) OR ( decrease OR decrease akt decrease ))*.