Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"phi hang ban snippets" » "thi hang ban snippets", "phi hung ban snippets", "pham hang ban snippets", "phi hang luan snippets", "phi hang va snippets", "phi hang tai snippets"

Try widening your search to All Fields.

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