Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"dung bin zhang slippers" » "dung min zhang slippers", "dung ming zhang slippers", "dung qing zhang slippers", "dung tin zhang slippers", "dung ninh zhang slippers", "dung vinh zhang slippers", "dung bin zhang slippery", "dung bin zhang grippers"
"locating bug code snippets" » "locating bug core snippets", "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 java code snippets") or ("dung bin zhang slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("dung bin zhang slippers"))) OR ("locating bug code snippets")).
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