Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luan dac co snippets" » "luan dac code snippets", "luan danh co snippets", "luan van co snippets", "luan va co snippets", "luan dac cho snippets", "luan cac co snippets", "luan dau co 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: (((("luan dac co snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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