Perhaps you should try some spelling variations:
"using java core snippets" » "using data core snippets"
"tran anh cam snippets" » "tran manh cam snippets", "tuan anh cam snippets", "tran thanh cam snippets", "tran anh ca snippets", "tran anh nam snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("using java core snippets") or ("tran anh cam snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java core snippets") OR ("tran anh cam snippets"))) OR ("locating bug code snippets")).
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• Adding a wildcard symbol may retrieve word variants: (((("using java core snippets") or ("tran anh cam snippets"))) or ("locating bug code snippets"))*.