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