Perhaps you should try some spelling variations:
"coder precoder flight linear programming" » "coder decoder flight linear programming" (Expand search), "coder precoder light linear programming" (Expand search), "coder precoder weight linear programming" (Expand search), "coder precoder flight lidar programming" (Expand search)
"api python python python programming" » "api pythons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pitons python python 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: (("coder precoder flight linear programming") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder flight linear programming\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder flight linear programming ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder flight linear programming") OR ("api python python python programming"))*.