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