Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phan shan lu snippets" » "phan phan lu snippets", "phan san lu snippets", "phan than lu snippets", "phan shan li snippets", "phan nhan luc snippets", "phan than luc snippets"

Try widening your search to All Fields.

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