Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"rong hoc duc snippets" » "trong hoc duc snippets", "dong hoc duc snippets", "truong hoc duc snippets", "rong hoc duoc snippets", "rong hoc nuoc snippets", "rong hoc thuc snippets"

Try widening your search to All Fields.

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