Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"phap toan duc snippets" » "phap hoan duc snippets", "phap luan duc snippets", "tap toan duc snippets", "phap tran duc snippets", "phap toan du snippets", "phap ton duc snippets"
"locating bug core snippets" » "locating bug code snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("using java code snippets") OR ("phap toan duc snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( phap toan duc snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("phap toan duc snippets"))) or ("locating bug core snippets"))*.