Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sach ba cau snippets" » "sach bai cau snippets", "sach bac cau snippets", "sach bao cau snippets", "sach ban cau snippets", "sach bo cau 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 ba cau 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 ba cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach ba cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach ba cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.