Perhaps you should try some spelling variations:
"coder coder doing science teaching" » "coder coder big science teaching" (Expand search), "coder decoder doing science teaching" (Expand search), "code code doing science teaching" (Expand search), "decoder codec doing science teaching" (Expand search), "coder codes going science teaching" (Expand search), "coder modelo doing science teaching" (Expand search), "coder coders using science teaching" (Expand search)
"_ pitons python python programming" » "_ pitons pythons python programming" (Expand search), "_ pitons piton python programming" (Expand search), "_ pitons pytm 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 coder doing science teaching\") OR (\"_ pitons python python programming\"))~".
• Removing quotes may allow a broader search: (( coder coder doing science teaching ) OR ( _ pitons python python programming ))~.
• Adding a wildcard symbol may retrieve word variants: (("coder coder doing science teaching") OR ("_ pitons python python programming"))*.