Perhaps you should try some spelling variations:
"sach so sio2 snippets" » "mach so sio2 snippets", "sach lo sio2 snippets", "sach song sio2 snippets", "sach sro sio2 snippets", "sach bao sio2 snippets", "sach cao sio2 snippets", "sach so sio2 slippers"
"python using a snippets" » "python using a slippers"
"locating bug code snippets" » "locating bug code slippers", "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 so sio2 snippets") or ("python using a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sach so sio2 snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sach so sio2 snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sach so sio2 snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.