Perhaps you should try some spelling variations:
"using java code slippers" » "using data code slippers"
"dung coc tao snippets" » "dung co tao snippets", "dung cac tao snippets", "dung hoc tao snippets", "dung cuoc tao snippets", "dung coc rao snippets", "dung goc tao snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs 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 slippers") or ("dung coc tao snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code slippers") OR ("dung coc tao snippets"))) OR ("locating bug code snippets")).
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