Perhaps you should try some spelling variations:
"cach so sio2 snippets" » "cach su sio2 snippets", "mach so sio2 snippets", "cach noi sio2 snippets", "cach sro sio2 snippets", "cach bao sio2 snippets", "cach cao sio2 snippets", "cach 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: (((("cach 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: (((("cach so sio2 snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach so sio2 snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach so sio2 snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.