Perhaps you should try some spelling variations:
"cuong anh thuc snippets" » "cuong danh thuc snippets", "vuong anh thuc snippets", "duong anh thuc snippets", "cuong am thuc snippets", "cuong dan thuc snippets", "cuong anh tu snippets", "cuong anh thuc 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: (((("cuong anh thuc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuong anh thuc snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("cuong anh thuc snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.