Perhaps you should try some spelling variations:
"coder functions java signal processing" » "power functions java signal processing" (Expand search), "order functions java signal processing" (Expand search), "colour functions java signal processing" (Expand search), "coder functions data signal processing" (Expand search), "coder functions and signal processing" (Expand search), "coder functions are signal processing" (Expand search), "coder functions aba signal processing" (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)

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder functions java signal processing\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder functions java signal processing ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder functions java signal processing") OR ("api python python python programming"))*.