Perhaps you should try some spelling variations:
"coder crowding detection algorithms teaching" » "coder crowding selection algorithm teaching" (Expand search), "coder crowd detection algorithms teaching" (Expand search), "coder flooding detection algorithms teaching" (Expand search), "coder reading detection algorithms teaching" (Expand search), "lower crowding detection algorithms teaching" (Expand search)
"api pythons python python programming" » "api pitons python python programming" (Expand search), "api piton python python programming" (Expand search), "api pythons piton python programming" (Expand search), "api pythons pitons python programming" (Expand search), "api pythons pytm python programming" (Expand search), "api 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 crowding detection algorithms teaching\") OR (\"api pythons python python programming\"))~".
• Removing quotes may allow a broader search: (( coder crowding detection algorithms teaching ) OR ( api pythons python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder crowding detection algorithms teaching") OR ("api pythons python python programming"))*.