Perhaps you should try some spelling variations:
"dang java java snippets" » "dang va java snippets"
"dung cuu phan slippers" » "dung cua phan slippers", "dung cu phan slippers", "dung cau phan slippers", "dung cuu phat slippers", "dung cuu nhan slippers", "dung cuu thanh slippers", "dung cuu phan slippery", "dung cuu phan 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: (((("dang java java snippets") or ("dung cuu phan slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dang java java snippets") OR ("dung cuu phan slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang java java snippets ) or ( dung cuu phan slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang java java snippets") or ("dung cuu phan slippers"))) or ("locating bug code snippets"))*.