Perhaps you should try some spelling variations:
"coder replication error model problem" » "coded replication error model problem" (Expand search), "code application error model problem" (Expand search), "codes application error model problem" (Expand search), "coder medication error model problem" (Expand search), "coder replication from model problem" (Expand search), "coder replication method model problem" (Expand search), "coder replication error model problems" (Expand search), "coder replication error moral problem" (Expand search), "coder replication error model probe" (Expand search), "coder replication error models 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 replication error model problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder replication error model problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder replication error model problem") OR ("api python python python programming"))*.