Perhaps you should try some spelling variations:
"doi tich sio2 snippets" » "doi tich so snippets", "doi tich swot snippets", "doi sic sio2 snippets", "di tich sio2 snippets", "doi tinh sio2 snippets", "doi trinh sio2 snippets", "doi tich 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: (((("doi tich 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: (((("doi tich sio2 snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi tich sio2 snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi tich sio2 snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.