Perhaps you should try some spelling variations:
"coder poder in sampling error" » "coder poder in sampling effort" (Expand search), "poder poder in sampling error" (Expand search), "codesc poder in sampling error" (Expand search), "poder power in sampling error" (Expand search), "coder poder and sampling error" (Expand search), "coder poder air sampling error" (Expand search), "coder poder _ sampling error" (Expand search), "coder poder i3 sampling error" (Expand search), "coder poder 4 sampling error" (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 poder in sampling error\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder poder in sampling error ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder poder in sampling error") OR ("api python python python programming"))*.