Perhaps you should try some spelling variations:
"robot navigation python python programming" » "robot navigation within python programming" (Expand search), "robot animation python python programming" (Expand search), "robot navigation method python programming" (Expand search), "global navigation python python programming" (Expand search), "robot navigation pythons python programming" (Expand search), "robot navigation piton python programming" (Expand search), "robot navigation pitons python programming" (Expand search)
"coder relation vector coding program" » "coder relation factor coding program" (Expand search), "coder relation actor coding program" (Expand search), "coder correlation vector coding program" (Expand search), "border relation vector coding program" (Expand search), "power relation vector coding program" (Expand search), "order relation vector coding program" (Expand search), "coder relation vector cloning program" (Expand search), "coder relation vector loading program" (Expand search), "coder relation vector cooling programs" (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: (("coder relation vector coding program") OR ("robot navigation python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder relation vector coding program\") OR (\"robot navigation python python programming\"))".
• Removing quotes may allow a broader search: (( coder relation vector coding program ) OR ( robot navigation python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder relation vector coding program") OR ("robot navigation python python programming"))*.