Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"thong cau tren snippets" » "thong cac tren snippets", "thong cap tren snippets", "thong tu tren snippets", "thong cu tren snippets", "thong dau tren snippets", "thong ca tren snippets", "thong cau tren 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 ("thong cau tren snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("thong cau tren snippets"))) OR ("locating bug code snippets")).
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