Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan thi so snippets" » "phan thi code snippets", "pham thi so snippets", "tran thi so snippets", "phan tu so snippets", "phan thi sao snippets", "phan thi son snippets", "phan thi mo 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 so 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 so snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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