Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thao dan toc snippets" » "thao dan code snippets", "tho dan toc snippets", "thao van toc snippets", "hao dan toc 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: (((("thao dan toc snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thao dan toc snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thao dan toc snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thao dan toc snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.