Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cu trinh hoa snippets" » "cu trinh code snippets", "cu trinh do snippets", "cu trinh han snippets", "co trinh hoa snippets", "qua trinh hoa snippets", "quy trinh hoa 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: (((("cu trinh hoa snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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