Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"tran dang da snippets" » "tran dang code snippets", "tran quang da snippets", "tran hoang da snippets", "tranh hang da snippets", "tran dang dan snippets", "tran dang do snippets", "tran dong da 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 dang da snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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