Perhaps you should try some spelling variations:
causal processes » causas processos (Expand search), coastal processes (Expand search), natural processes (Expand search)
disease causal » disease caused (Expand search), disease causes (Expand search), disease causality (Expand search)
decrease root » decrease food (Expand search), decrease soon (Expand search), decreasing root (Expand search)
root disease » root diseases (Expand search), rot disease (Expand search), foot disease (Expand search)
python reais » python regius (Expand search), python redes (Expand search)
reais pitons » reais pontos (Expand search), reais python (Expand search), reais pos (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 root disease causal processes ) OR ( python reais pitons python programming ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease root disease causal processes ) OR ( python reais pitons python programming ))*.