Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phi doi tang snippets" » "phi do tang snippets", "phi doi mang snippets", "phi doi tan snippets", "phi loi tang snippets", "phu doi tang snippets", "khi doi tang snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("phi doi tang snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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