Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"anh muon dam snippets" » "anh huong dam snippets", "anh duong dam snippets", "anh tuan dam snippets", "anh muon lam snippets", "anh mon dam snippets", "anh muoi nam snippets", "anh muon dam 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 ("anh muon dam snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("anh muon dam snippets"))) OR ("locating bug code snippets")).
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