Perhaps you should try some spelling variations:
"python using data slippers" » "python using java slippers", "python using sat slippers", "python missing data slippers", "python using data slippery", "python using data grippers"
"dung lan dan snippets" » "dung luan dan snippets", "dung land dan snippets", "dung lam dan snippets", "dung ban dan snippets", "dung van dan snippets", "dung lan dau snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung lan dan snippets") or ("python using data slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung lan dan snippets") OR ("python using data slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung lan dan snippets ) or ( python using data slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung lan dan snippets") or ("python using data slippers"))) or ("locating bug code snippets"))*.