Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan hung ca snippets" » "phan hung code snippets", "phan chung ca snippets", "phan ung ca snippets", "phan hong ca snippets", "phan nhung ca snippets", "phan hang ca snippets", "phan hung ha 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 hung ca snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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