Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cong co lo snippets" » "dong co lo snippets", "cong cu lo snippets", "cong so lo snippets", "cong co loi snippets", "cong co lao snippets", "cong co loa 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: (((("cong co lo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong co lo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong co lo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong co lo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.