Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phan lan bat snippets" » "phan lap bat snippets", "phan van bat snippets", "phan loai bat snippets", "phan la bat snippets", "phan san bat snippets", "phan danh bat snippets"

Try widening your search to All Fields.

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