Perhaps you should try some spelling variations:
"creating phan duc snippets" » "creating a duc snippets", "creating pham duc snippets", "creating phan tu snippets", "creating phan dau snippets"
"locating bug core snippets" » "locating bug code snippets"
"creating c a snippets" » "creating _ a snippets", "creating a a snippets", "creating c va snippets"

Try widening your search to All Fields.

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