Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach va ton snippets" » "sach xa ton snippets", "sach ha ton snippets", "sach dao ton snippets", "sach va toan snippets", "sach va tong snippets", "sach va tin 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: (((("sach va ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sach va ton snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach va ton snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach va ton snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.