Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dan noi doi snippets" » "dang noi doi snippets", "dan nuoi doi snippets", "van noi doi snippets", "dan voi doi snippets", "dan hoi doi snippets", "dan moi doi 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 noi doi 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 noi doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dan noi doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan noi doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.