Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"cua toan duc snippets" » "cuu toan duc snippets", "xuan toan duc snippets", "cua thanh duc snippets", "cua tran duc snippets", "cua toan du snippets", "cua ton duc 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 ("cua toan duc snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("cua toan duc snippets"))) OR ("locating bug core snippets")).
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