Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dang loai tran snippets" » "dang hoai tran snippets", "dang loi tran snippets", "dung loai tran snippets", "dang loai tren snippets", "dang loai san snippets", "dang loai tai 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 loai tran snippets"))) or ("locating bug core snippets"))~.
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