Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"dung tran lam slippers" » "dung tren lam slippers", "hung tran lam slippers", "dang tran lam slippers", "dung trang lam slippers", "dung tranh lam slippers", "dung trai lam slippers", "dung tran lam slippery", "dung tran lam 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 tran lam 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 tran lam slippers"))) OR ("locating bug code snippets")).
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