Perhaps you should try some spelling variations:
"developing _ coding variables problems" » "developing _ coding variables problem" (Expand search), "developing _ coding variable problem" (Expand search), "developing _ coding variables process" (Expand search), "developing _ cooking variables problems" (Expand search), "developing _ loading variables problems" (Expand search), "developing _ voiding variables problems" (Expand search)
"using coding python python programming" » "using codigo python python programming" (Expand search), "using codigos python python programming" (Expand search), "using using python python programming" (Expand search), "using coding pythons python programming" (Expand search), "using coding piton python programming" (Expand search), "using coding pitons python programming" (Expand search), "using coping python python programming" (Expand search), "using coating python python programming" (Expand search), "using cooking 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: (("developing _ coding variables problems") OR ("using coding python python programming"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((\"developing _ coding variables problems\") OR (\"using coding python python programming\"))".
• Removing quotes may allow a broader search: (( developing _ coding variables problems ) OR ( using coding python python programming )).
• Adding a wildcard symbol may retrieve word variants: (("developing _ coding variables problems") OR ("using coding python python programming"))*.