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