Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"va vinh tran slippers" » "va minh trang slippers", "va tinh trang slippers", "va vinh thang slippers", "van vinh tran slippers", "va kinh tran slippers", "va tinh tran slippers", "va vinh tran slippery", "va vinh tran 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 ("va vinh tran slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("va vinh tran slippers"))) OR ("locating bug code snippets")).
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