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