Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"trinh danh bat slippers" » "trinh dinh bat slippers", "trinh dan bat slippers", "trinh anh bat slippers", "trinh doanh bat slippers", "trinh anh bai slippers", "trinh dinh ba slippers", "trinh danh bat slippery", "trinh danh bat 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 ("trinh danh bat slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("trinh danh bat slippers"))) OR ("locating bug code snippets")).
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