Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chen den ca snippets" » "chen wen ca snippets", "chet den ca snippets", "chen chen ca snippets", "chen den cac snippets", "chen den cam snippets", "chen dien ca 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: (((("chen den 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: (((("chen den ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chen den ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chen den ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.