Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"han phap cau snippets" » "han phap code snippets", "hanh phap cau snippets", "phan phap cau snippets", "ban phap cau snippets", "han phan cau snippets", "han pha cau snippets", "han phap ca 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: (((("han phap cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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