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