Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trac cho doi snippets" » "trac cho code snippets", "tac cho doi snippets", "tra cho doi snippets", "trac ho doi snippets", "trac cho moi snippets", "trac cuoc doi snippets", "trac cho tuoi 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: (((("trac cho doi snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
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