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