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