Perhaps you should try some spelling variations:
"using java core snippets" » "using data core snippets"
"phi anh cam snippets" » "thi anh cam snippets", "chi anh cam snippets", "phi khanh cam snippets", "phi manh cam snippets", "phi anh ca snippets", "phi anh nam snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

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