Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi tap toan snippets" » "thi tap code snippets", "thi tap doan snippets", "thi tap quan snippets", "thi bai toan snippets", "thi thap toan snippets", "thi tam toan snippets", "thi tac toan 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: (((("thi tap toan snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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