Perhaps you should try some spelling variations:
"coder coding on functionalised graphene" » "coder coding on functionalized graphene" (Expand search), "coder coding on functionalized graphite" (Expand search), "coder coding on functionalized germanene" (Expand search), "coder coding of functionalised graphene" (Expand search), "coder coding in functionalized graphene" (Expand search), "modern coding on functionalised graphene" (Expand search), "color coding on functionalised graphene" (Expand search), "odor coding on functionalised graphene" (Expand search), "coder coding in functionalised graphene" (Expand search), "coder coding an functionalised graphene" (Expand search)
"_ python python python programming" » "_ pythons python python programming" (Expand search), "_ piton python python programming" (Expand search), "_ pitons python python programming" (Expand search)

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("coder coding on functionalised graphene") OR ("_ python python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder coding on functionalised graphene\") OR (\"_ python python python programming\"))".
• Removing quotes may allow a broader search: (( coder coding on functionalised graphene ) OR ( _ python python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder coding on functionalised graphene") OR ("_ python python python programming"))*.