Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"ban cao chu snippets" » "bao cao chu snippets", "ban can chu snippets", "ban co chu snippets", "ban chao chu snippets", "ban cao cho snippets", "ban cho chu 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 cao chu 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 cao chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ban cao chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban cao chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.