Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"than toan do snippets" » "than toan code snippets", "thanh toan do snippets", "than tuan do snippets", "thuat toan do snippets", "than toan ho snippets", "than toan co snippets", "than toan du 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: (((("than toan do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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