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