Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"tung danh phap snippets" » "tung dan phap snippets", "dung danh phap snippets", "tung manh phap snippets", "tung dinh phap snippets", "tung ban phap snippets", "tung danh nhan snippets"
"locating bug core snippets" » "locating bug 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 ("tung danh phap snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("tung danh phap snippets"))) OR ("locating bug core snippets")).
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