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