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