Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chang am ca snippets" » "chang ama ca snippets", "chang dam ca snippets", "chang ham ca snippets", "chang am cat snippets", "chang nam ca snippets", "chang am ma 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: (((("chang am ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chang am ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chang am ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chang am ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.