Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"da hoc doi snippets" » "da hoc code snippets", "da hoc dai snippets", "da hoc noi snippets", "da hoc moi snippets", "dai hoc doi snippets", "dan hoc doi snippets", "day hoc doi 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: (((("da hoc doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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