Perhaps you should try some spelling variations:
"coder precoding exact algorithms complexity" » "coder precoding exact algorithmic complexity" (Expand search), "coder precoding and algorithms complexity" (Expand search), "coherent precoding exact algorithms complexity" (Expand search), "linear precoding exact algorithms complexity" (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 precoding exact algorithms complexity\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder precoding exact algorithms complexity ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder precoding exact algorithms complexity") OR ("api python python python programming"))*.