Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"va nghe trac snippets" » "va nghe thuc snippets", "va nghe khac snippets", "va nghe tan snippets", "van nghe trac snippets", "ve nghe trac snippets", "va nghi trac snippets", "va nghe trac slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("va nghe trac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("va nghe trac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( va nghe trac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va nghe trac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.