Perhaps you should try some spelling variations:
"coder precoder aptica linear programing" » "coder precoder aptica linear programming" (Expand search), "coder precoder aptica linear programmin" (Expand search), "coder precoder aptica linear program" (Expand search), "coder decoder aptica linear programing" (Expand search), "coder precoder optica linear programing" (Expand search), "coder precoder opticas linear programing" (Expand search), "coder precoder optico linear programing" (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), "rpa python python python programming" (Expand search), "manim python 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 aptica linear programing") OR ("api python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder precoder aptica linear programing\") OR (\"api python python python programming\"))".
• Removing quotes may allow a broader search: (( coder precoder aptica linear programing ) OR ( api python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder precoder aptica linear programing") OR ("api python python python programming"))*.