Perhaps you should try some spelling variations:
"moi cong sio2 snippets" » "moi cong so snippets", "moi cong soi snippets", "noi cong sio2 snippets", "voi cong sio2 snippets", "tai cong sio2 snippets", "moi cong 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: (((("moi cong 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: (((("moi cong sio2 snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( moi cong sio2 snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("moi cong sio2 snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.