Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"han thu phan snippets" » "han thu nhan snippets", "han thuat phan snippets", "han than phan snippets", "van thu phan snippets", "lan thu phan snippets", "han tu phan snippets"

Try widening your search to All Fields.

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