Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nam dan so snippets" » "nam dan code snippets", "nam dinh so snippets", "nam dan soc snippets", "nam dan su snippets", "nam dan mo snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data 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: (((("nam dan so snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nam dan so snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( nam dan so snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam dan so snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.