Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hoc doi tang snippets" » "hoc do tang snippets", "hoc doi mang snippets", "hoc doi tan snippets", "hoc dai tang snippets", "hoc noi tang snippets", "hoc moi tang snippets"

Try widening your search to All Fields.

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