Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dac thi hong snippets" » "dac thi code snippets", "dac thi cong snippets", "dac thi phuong snippets", "dac thi hanh snippets", "dan thi hong snippets", "dao thi hong snippets", "dam thi hong 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: (((("dac thi hong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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