Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"doan ha tran snippets" » "doan hai tran snippets", "doan hay tran snippets", "doanh ha tran snippets", "doan nha trang snippets", "doan thai tran snippets", "doan tan tran snippets"

Try widening your search to All Fields.

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• Performing a fuzzy search may retrieve terms with similar spellings: (((("doan ha tran snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doan ha tran snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
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