Perhaps you should try some spelling variations:
"python missing data snippets" » "python using data snippets"
"phap du _ slippers" » "phap dau _ slippers", "phap tu _ slippers", "pha du _ slippers", "phap du _ slippery", "phap du _ grippers"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("phap du _ slippers") or ("python missing data snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap du _ slippers") OR ("python missing data snippets"))) OR ("locating bug code snippets"))*.
• Removing quotes may allow a broader search: (((( phap du _ slippers ) or ( python missing data snippets ))) or ( locating bug code snippets ))*.