Perhaps you should try some spelling variations:
"using ibm code snippets" » "using rbf code snippets", "using lbm code snippets", "using ibm code slippers"
"dung toan nha snippets" » "dung doanh nha snippets", "dung thang nha snippets", "dung thanh nha snippets", "dung toa nha snippets", "dung toan khoa snippets", "dung toan chi snippets", "dung toan nha slippers"
"locating bug code snippets" » "locating bug code slippers", "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 ibm code snippets") or ("dung toan nha snippets"))) or ("locating bug code snippets"))~.
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