Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"lua toan thiet snippets" » "lua hoan thien snippets", "lua luan thiet snippets", "lua toan tien snippets", "cua toan thiet snippets", "luan hoan thiet snippets", "xuan toan thiet snippets", "lua toan thiet 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 ("lua toan thiet snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("lua toan thiet snippets"))) OR ("locating bug code snippets")).
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