Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using raw snippets" » "python using real snippets", "python using a snippets", "python using low snippets"
"phan le dac snippets" » "pham le dac snippets", "phan mem dac snippets", "phan lap dac snippets", "phan le dan snippets", "phan le duc snippets"

Try widening your search to All Fields.

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