Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi hoan cao snippets" » "thi hoan code snippets", "thi hoa cao snippets", "thi hanh cao snippets", "thi hong cao snippets", "thi hoang cao snippets", "thi toan cao snippets", "thi hoan hao 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: (((("python using java snippets") or ("thi hoan cao snippets"))) or ("locating bug core snippets"))~.
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