Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dua voi trac slippers" » "dua hoi trac slippers", "dua vi trac slippers", "dua voi cac slippers", "da voi trac slippers", "dua moi trac slippers", "sua voi trac slippers", "dua voi trac slippery", "dua voi trac 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: (((("dua voi trac slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dua voi trac slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dua voi trac slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dua voi trac slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.