Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi lan cac snippets" » "thi lan code snippets", "thi hanh cac snippets", "thi nang cac snippets", "thi lien cac snippets", "thi dan cac snippets", "thi lan dac snippets", "thi gian cac 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: (((("thi lan cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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