Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"manh toan 01 snippets" » "thanh toan 01 snippets", "anh tuan 01 snippets", "tinh toan 01 snippets", "manh toan 2015 snippets", "manh thang 01 snippets", "manh toan 01 slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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