Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"tran anh can snippets" » "tran manh can snippets", "tuan anh can snippets", "tran thanh can snippets", "tran anh van snippets", "tran anh ca snippets", "tran anh cam snippets"
"locating bug core snippets" » "locating bug 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 code snippets") or ("tran anh can snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("tran anh can snippets"))) OR ("locating bug core snippets"))*.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( tran anh can snippets ))) or ( locating bug core snippets ))*.