Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phu toan cau snippets" » "phu toan code snippets", "phu tran cau snippets", "phap toan cau snippets", "phu san cau snippets", "phu toan cao snippets", "phu toan ban snippets", "phu toan tap 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: (((("phu toan cau snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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