Perhaps you should try some spelling variations:
"coder code clustering algorithms complexity" » "coder code clustering algorithmic complexity" (Expand search), "coder model clustering algorithms complexity" (Expand search), "coder co clustering algorithms complexity" (Expand search), "coder module clustering algorithms complexity" (Expand search), "code code clustering algorithms complexity" (Expand search), "modern code clustering algorithms complexity" (Expand search), "color code clustering 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 code clustering algorithms complexity\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder code clustering algorithms complexity ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder code clustering algorithms complexity") OR ("api python python python programming"))*.