Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"hai bang luc snippets" » "thai bang luc snippets", "hai dang luc snippets", "thai hang luc snippets", "hai nang luc snippets", "hai bang luan snippets", "hai dong luc snippets"

Try widening your search to All Fields.

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