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