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