Perhaps you should try some spelling variations:
"coder presentation java rostering problem" » "poster presentation java rostering problem" (Expand search), "cancer presentation java rostering problem" (Expand search), "case presentation java rostering problem" (Expand search), "coder presentation carta rostering problem" (Expand search), "coder presentation and rostering problem" (Expand search), "coder presentation case rostering problem" (Expand search), "coder presentation java clustering problem" (Expand search), "coder presentation java routing problem" (Expand search), "coder presentation java covering 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 presentation java rostering problem\") OR (\"api python python python programming\"))~".
• Removing quotes may allow a broader search: (( coder presentation java rostering problem ) OR ( api python python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder presentation java rostering problem") OR ("api python python python programming"))*.