Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doc cao hoi snippets" » "doc cao code snippets", "hoc cao hoi snippets", "do cao hoi snippets", "doc dao hoi snippets", "doc cau hoi snippets", "doc co hoi snippets", "doc cao hoc 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: (((("doc cao hoi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doc cao hoi snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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