Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tra bat cu snippets" » "tra bat code snippets", "tra bao cu snippets", "tra chat cu snippets", "tran bai cu snippets", "tra bat cua snippets", "tra bat hu snippets", "tra bat tu 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: (((("tra bat cu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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