Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"doi duc than slippers" » "doi duc thang slippers", "doi duc thanh slippers", "doi duc thuan slippers", "do duc than slippers", "doi duy than slippers", "oi duc than slippers", "doi duc than slippery", "doi duc than 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: (((("doi duc than slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi duc than slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi duc than slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi duc than slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.