Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nhan tao doi snippets" » "nhan tao code snippets", "nhan tai doi snippets", "nhan dan doi snippets", "nhan va doi snippets", "nhan trao doi snippets", "nhan tao dai snippets", "nhan tao boi 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: (((("nhan tao doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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