Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"co do cong snippets" » "co do code snippets", "co doi cong snippets", "co do hong snippets", "co bo cong snippets", "co dot cong snippets", "co don cong snippets", "co so cong 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: (((("co do cong snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("co do cong snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( co do cong snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("co do cong snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.