Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"chu phan trac slippers" » "chu phan tap slippers", "chu phan cac slippers", "chu phan tan slippers", "chau phan trac slippers", "cho phan trac slippers", "chu han trac slippers", "chu phan trac slippery", "chu phan trac 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 ("chu phan trac slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("chu phan trac slippers"))) OR ("locating bug code snippets")).
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