Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"dung vi rang snippets" » "dung va rang snippets", "dung viet rang snippets", "dung tai rang snippets", "dung vi trang snippets", "dung si rang snippets", "dung va trang 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 ("dung vi rang snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("dung vi rang snippets"))) OR ("locating bug core snippets")).
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