Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"lua lang van slippers" » "cua lang van slippers", "dua lang van slippers", "lua sang van slippers", "lua dang van slippers", "lua tang van slippers", "lua hoang van slippers", "lua lang van slippery", "lua lang van 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 ("lua lang van slippers"))) or ("locating bug code snippets"))~.
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