Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dam phan duc snippets" » "d phan duc snippets", "va phan duc snippets", "van phan duc snippets", "dam pham duc snippets", "dam phan tu snippets", "dam phan dau snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dam 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: (((("dam phan duc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("dam phan duc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.