Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach cau noi snippets" » "sach cap noi snippets", "sach dau noi snippets", "sach mau noi snippets", "sach cau hoi snippets", "sach cau doi snippets", "sach cach noi 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 cau noi 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 cau noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach cau noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach cau noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.