Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"sung tay robot slippers" » "sung tao robot slippers", "sung a robot slippers", "sung tay robto slippers", "vung tay robot slippers", "dung tay robot slippers", "nung tay robot slippers", "sung tay robot slippery", "sung tay robot grippers"
"locating bug code snippets" » "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: (((("dung java java snippets") or ("sung tay robot slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung java java snippets") OR ("sung tay robot slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung java java snippets ) or ( sung tay robot slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung java java snippets") or ("sung tay robot slippers"))) or ("locating bug code snippets"))*.