Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thao van toc snippets" » "thao van code snippets", "thai van toc snippets", "hao van toc snippets", "thanh van toc snippets", "thao van hoc snippets", "thao dan toc snippets", "thao van toi 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 van 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 van toc snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( thao van toc snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thao van toc snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.