Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dan doi ca snippets" » "dan doi code snippets", "dan hoi ca snippets", "dan toi ca snippets", "van doi ca snippets", "dan doi cua snippets", "dan doi cay snippets", "dan duoi ca snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dan doi ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dan doi ca snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dan doi ca snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan doi ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.