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