Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con cong de snippets" » "cong cong de snippets", "con cuong de snippets", "bon cong de snippets", "con cong da snippets", "con cong ve snippets", "con cong dieu 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: (((("con cong de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("con cong de snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con cong de snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con cong de snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.