Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"bua san thuc snippets" » "bua dan thuc snippets", "bua sat thuc snippets", "bua van thuc snippets", "bua sang thuc snippets", "cua san thuc snippets", "qua san thuc snippets"

Try widening your search to All Fields.

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