Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"trinh tam trac slippers" » "trinh tai trac slippers", "trinh toan trac slippers", "trinh cham trac slippers", "trinh tap trac slippers", "trinh tam trai slippers", "trinh tam trac slippery", "trinh tam trac grippers"
"locating bug code snippets" » "locating bug core snippets", "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 tam trac slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("trinh tam trac slippers"))) OR ("locating bug code snippets")).
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