Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach xa cach snippets" » "sach dao cach snippets", "sach nha cach snippets", "sach bai cach snippets", "sach va cach snippets", "sach ca cach snippets", "sach xa lach 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 xa cach 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 xa cach snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach xa cach snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach xa cach snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.