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