Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cu tre can snippets" » "cu tre code snippets", "cu tre dan snippets", "cu tiep can snippets", "cu tiem can snippets", "cu tren can snippets", "cua tre can snippets", "cuu tre can 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: (((("cu tre can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cu tre can snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cu tre can snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cu tre can snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.