Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"dien toan trac snippets" » "dien thanh trac snippets", "dien thoai trac snippets", "dien hoa trac snippets", "dien toan tran snippets", "dien thoan tran snippets", "dien toan tap snippets", "dien toan trac slippers"
"locating bug code snippets" » "locating bug core snippets", "locating bug code slippers", "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 ("dien toan trac snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("dien toan trac snippets"))) OR ("locating bug code snippets")).
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