Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phi khi doi snippets" » "phi khi code snippets", "phai khi doi snippets", "phoi khi doi snippets", "phi phi doi snippets", "phi khi dai snippets", "phi khi hoi snippets", "phi khi moi 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: (((("phi khi doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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