Perhaps you should try some spelling variations:
"dung thoi phan snippets" » "dung thi phan snippets", "dung toi phan snippets", "dung thuoc phan snippets", "dung hoi phan snippets", "dung phoi phan snippets", "dung thai phan snippets", "dung thoi phan slippers"
"hang java java snippets" » "hang va java snippets", "hang java java slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung thoi phan snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung thoi phan snippets") OR ("hang java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung thoi phan snippets ) or ( hang java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung thoi phan snippets") or ("hang java java snippets"))) or ("locating bug code snippets"))*.