Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban dan co snippets" » "ban hang co snippets", "ban hanh co snippets", "ban quan co snippets", "ban dan cho snippets", "ban dang co snippets", "ban danh co 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 dan co 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 dan co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban dan co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban dan co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.