Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"han voi ngan snippets" » "han voi nganh snippets", "han von ngan snippets", "han doi ngan snippets", "hanh voi ngan snippets", "than voi ngan snippets", "han vui ngan snippets", "han voi ngan slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("han voi ngan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("han voi ngan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( han voi ngan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("han voi ngan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.