Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con cong chu snippets" » "cong cong chu snippets", "con cuong chu snippets", "bon cong chu snippets", "con cong chuc snippets", "con cong chua snippets", "con cong cu 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 chu 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 chu snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con cong chu snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con cong chu snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.