Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luan dac cuc snippets" » "luan dac code snippets", "luan danh cuc snippets", "luan van cuc snippets", "luan va cuc snippets", "luan doc cuoc snippets", "luan cac cuoc snippets", "luan tac cuoc 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 cuc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan dac cuc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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