Perhaps you should try some spelling variations:
"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)
"coder using dental _ programming" » "coder during dental _ programming" (Expand search), "coder using digital _ programming" (Expand search), "coder using data _ programming" (Expand search), "coders using dental _ programming" (Expand search), "cover using dental _ programming" (Expand search), "code using dental _ 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 using dental _ programming") OR ("api pythons python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"coder using dental _ programming\") OR (\"api pythons python python programming\"))".
• Removing quotes may allow a broader search: (( coder using dental _ programming ) OR ( api pythons python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("coder using dental _ programming") OR ("api pythons python python programming"))*.