Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hoi phan duc snippets" » "phoi phan duc snippets", "hoc phan duc snippets", "hoa phan duc snippets", "hoi pham duc snippets", "hoi phan tu snippets", "hoi phan dau snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("hoi phan duc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoi phan duc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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