Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chang ham da snippets" » "chang dam da snippets", "chang ha da snippets", "hang hai da snippets", "chang kham da snippets", "chang ham dan snippets", "chang nam da 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 ham da 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 ham da snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chang ham da snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chang ham da snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.