Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dang anh quang snippets" » "dang anh xquang snippets", "dang anh quan snippets", "dang nhanh quang snippets", "dang hanh quang snippets", "dang manh quang snippets", "dong anh quang snippets"
"locating bug core snippets" » "locating bug 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 ("dang anh quang snippets"))) or ("locating bug core snippets"))~.
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