Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"con cua tre snippets" » "cong cua tre snippets", "co cua tre snippets", "dong cua tre snippets", "con cua te snippets", "con cuu tre snippets", "con cua triet 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 cua tre 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 cua tre snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( con cua tre snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("con cua tre snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.