Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hat cua dem snippets" » "nhat cua dem snippets", "chat cua dem snippets", "phat cua dem snippets", "hat cua dam snippets", "hat nua dem snippets", "hat cua 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: (((("hat cua dem 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 dem snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hat cua dem snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hat cua dem snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.