Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"tap toan duc slippers" » "tap doan duc slippers", "tap quan duc slippers", "bai toan duc slippers", "tap tran duc slippers", "tap toan du slippers", "tap ton duc slippers", "tap toan duc slippery", "tap toan duc 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 ("tap toan duc slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("tap toan duc slippers"))) OR ("locating bug code snippets")).
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