Perhaps you should try some spelling variations:
"coder low complexity estimation problem" » "coder low complexity education problem" (Expand search), "coder low complexity variation problem" (Expand search), "coder low complexity evaluation problem" (Expand search), "coder low complexity restoration problem" (Expand search), "coder low complexity optimization problem" (Expand search), "coder and complexity estimation problem" (Expand search), "code low complexity estimation problem" (Expand search), "codes low complexity estimation problem" (Expand search), "under low complexity estimation problem" (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 low complexity estimation problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder low complexity estimation problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder low complexity estimation problem") OR ("api python python python programming"))*.