Perhaps you should try some spelling variations:
"doi doanh phan snippets" » "doi doanh nhan snippets", "doi doan phan snippets", "doi doanh thanh snippets", "voi doanh phan snippets", "dong doanh phan snippets", "tri doanh phan snippets", "doi doanh phan 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 doanh phan 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 doanh phan snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using a snippets ) or ( doi doanh phan snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using a snippets") or ("doi doanh phan snippets"))) or ("locating bug code snippets"))*.