Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan van con snippets" » "phan van code snippets", "pham van con snippets", "thanh van con snippets", "luan van con snippets", "phan van cong snippets", "phan van bon snippets", "phan van 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: (((("phan van con snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan van con snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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