Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nhap ca hon snippets" » "nhap cao hon snippets", "nhap cua hon snippets", "nhap cay hong snippets", "phap ca hon snippets", "nhan ca hon snippets", "nhat ca hon 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: (((("nhap ca hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nhap ca hon snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nhap ca hon snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nhap ca hon snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.