Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"day nghe mon snippets" » "dang nghe mon snippets", "van nghe mon snippets", "nam nghe mon snippets", "day nghe moi snippets", "day nghe son snippets", "day nghe moc 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: (((("day nghe mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("day nghe mon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( day nghe mon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("day nghe mon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.