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