Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets", "using java core snippets"
"hung tinh hoa snippets" » "hung thinh hoa snippets", "nhung tinh hoa snippets", "dung tinh hoa snippets", "hung trinh hoa snippets", "hung tinh hoc snippets", "hung minh hoa snippets"
"locating bug code snippets" » "locating bug core snippets", "locating bung code snippets", "locating bugs code snippets"

Try widening your search to All Fields.

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