Perhaps you should try some spelling variations:
"doi cuoc ban snippets" » "doc cuoc ban snippets", "doi cua ban snippets", "dao cuoc ban snippets", "doi quoc ban snippets", "doi buoc ban snippets", "doi coc ban snippets", "doi cuoc ban 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 cuoc ban 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 cuoc ban snippets") OR ("python using a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( doi cuoc ban snippets ) or ( python using a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi cuoc ban snippets") or ("python using a snippets"))) or ("locating bug code snippets"))*.