Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran anh dot snippets" » "tran anh code snippets", "tran manh dot snippets", "tuan anh dot snippets", "tran thanh dot snippets", "tran anh dat snippets", "tran anh doc snippets", "tran anh dong snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("tran anh dot snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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