Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets", "using java code slippers"
"trinh toan thu snippets" » "tinh toan thu snippets", "thanh toan thu snippets", "trinh han thu snippets", "trinh toan thuc snippets", "trinh toan thue snippets", "trinh tuan thu snippets", "trinh toan thu 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 ("trinh toan thu snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("trinh toan thu snippets"))) OR ("locating bug code snippets")).
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