Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dat lanh cua snippets" » "dat lanh code snippets", "dat anh cua snippets", "dau lanh cua snippets", "hat lanh cua snippets", "dat manh cua snippets", "dat hanh cua snippets", "dat lang cua 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: (((("dat lanh cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dat lanh cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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