Perhaps you should try some spelling variations:
observed programming » oriented programming (Expand search), based programming (Expand search), bilevel programming (Expand search)
decrease observed » case observed (Expand search), decay observed (Expand search)
decrease their » decrease the (Expand search), increase their (Expand search), decreases the (Expand search)
their decrease » the decrease (Expand search), their disease (Expand search), the decreased (Expand search)
python java » python data (Expand search), python capaz (Expand search)
java lambda » gama lambda (Expand search), barra lambda (Expand search), heavy lambda (Expand search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: (( decrease their decrease observed programming ) OR ( python java lambda python programming ))~.