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