Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"van hoang phan snippets" » "van hoang nhan snippets", "van hoang thanh snippets", "van hoang thoan snippets", "van hoan phan snippets", "quan hoang phan snippets", "tran hoang phan snippets"
"locating bug core snippets" » "locating bug code snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("using java code snippets") or ("van hoang phan snippets"))) or ("locating bug core snippets"))~.
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