Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan thi con snippets" » "phan thi code snippets", "pham thi con snippets", "tran thi con snippets", "phan tu con snippets", "phan thi cong snippets", "phan thi mon snippets", "phan chi con 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: (((("phan thi con snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan thi con snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phan thi con snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
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