Perhaps you should try some spelling variations:
"tran hung van snippets" » "tran hong van snippets", "tran quang van snippets", "tran hoang van snippets", "tran phung van snippets", "tran nhung van snippets", "tran dung van snippets", "tran hung van slippers"
"dung java java snippets" » "dung va java snippets", "dung 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: (((("tran hung van snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
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