Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban xu chat snippets" » "ban xu phat snippets", "ban du chat snippets", "ban vu chat snippets", "ban tu chat snippets", "ban su chat snippets", "han xu chat 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: (((("ban xu chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban xu chat snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban xu chat snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban xu chat snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.