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