Perhaps you should try some spelling variations:
period programming » grid programming (Expand search), method programming (Expand search), end programming (Expand search)
decrease processes » disease processes (Expand search), decay processes (Expand search), increase process (Expand search)
disease decrease » disease decreases (Expand search), diseases decreases (Expand search), disease increased (Expand search)
decade implicit » decrease implicit (Expand search), verdade implicit (Expand search), package implicit (Expand search)
implicit period » implicit method (Expand search), implicit operation (Expand search), implicit methods (Expand search)
decrease knot » decrease in (Expand search), decrease of (Expand search), decrease and (Expand search)
knot disease » spot disease (Expand search), rot disease (Expand search), foot disease (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 knot disease decrease processes ) OR ( AND decade implicit period programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease knot disease decrease processes ) OR ( AND decade implicit period programming ))*.