Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dung dam rao snippets" » "dung dat rao snippets", "dung lam rao snippets", "dung dan rao snippets", "dung dam trao snippets", "dung dam bao snippets", "dung dam cao snippets"

Try widening your search to All Fields.

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