Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"van tan phan slippers" » "van toan phan slippers", "van than phan slippers", "van van phan slippers", "van tuan phan slippers", "van ban phan slippers", "van tai phan slippers", "van tan phan slippery", "van tan phan 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 ("van tan phan slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("van tan phan slippers"))) OR ("locating bug code snippets")).
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