Perhaps you should try some spelling variations:
"doi thoi nhap snippets" » "doi hoi nhap snippets", "doi thu nhap snippets", "doi hoa nhap snippets", "doi thoai nhap snippets", "moi thoi nhap snippets", "do thoi nhap snippets", "doi thoi nhap 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: (((("python using a snippets") or ("doi thoi nhap snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using a snippets") OR ("doi thoi nhap snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using a snippets ) or ( doi thoi nhap snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using a snippets") or ("doi thoi nhap snippets"))) or ("locating bug code snippets"))*.