Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hoi hoc tran snippets" » "hoi hoc tan snippets", "hoi hoc tren snippets", "hoi boc tran snippets", "hoa hoc tran snippets", "khoa hoc tran snippets", "hoi chuc tran snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("hoi hoc tran snippets"))) or ("locating bug core snippets"))~.
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