Perhaps you should try some spelling variations:
"angle optimization _ computer programmers" » "angle optimization _ computer programs" (Expand search), "angle optimization _ computers programming" (Expand search), "angle optimization _ computer program" (Expand search), "engine optimization _ computer programmers" (Expand search), "the optimization _ computer programmers" (Expand search), "shape optimization _ computer programmers" (Expand search)
"advanced python python computer programming" » "advanced python python computer program" (Expand search), "advanced python python computer programs" (Expand search), "advanced method python computer programming" (Expand search), "advanced path python computer programming" (Expand search), "advanced symphony python computer programming" (Expand search), "advanced pythons python computer programming" (Expand search), "advanced piton python computer programming" (Expand search), "advanced pitons python computer programming" (Expand search)

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

• Performing a fuzzy search may retrieve terms with similar spellings: (("angle optimization _ computer programmers") OR ("advanced python python computer programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"angle optimization _ computer programmers\") OR (\"advanced python python computer programming\"))".
• Removing quotes may allow a broader search: (( angle optimization _ computer programmers ) OR ( advanced python python computer programming )).
• Adding a wildcard symbol may retrieve word variants: (("angle optimization _ computer programmers") OR ("advanced python python computer programming"))*.