Perhaps you should try some spelling variations:
"locating bug code slippers" » "locating bug code snippets", "locating bung code slippers", "locating bugs code slippers"
"hung trinh quan snippets" » "hung thinh quan snippets", "hung tinh quan snippets", "chuong trinh quan snippets", "hung tinh quang snippets", "hung trinh luat snippets", "hung trinh han snippets"
"dung java java snippets" » "dung va java snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("hung trinh quan snippets") or ("dung java java snippets"))) or ("locating bug code slippers"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hung trinh quan snippets") OR ("dung java java snippets"))) OR ("locating bug code slippers")).
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• Adding a wildcard symbol may retrieve word variants: (((("hung trinh quan snippets") or ("dung java java snippets"))) or ("locating bug code slippers"))*.