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