Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"locating bug core snippets" » "locating bug code snippets"
"nhan do cong snippets" » "nhan dot cong snippets", "nhan mo cong snippets", "nhan co cong snippets", "nhan doi cong snippets", "nhan do hong snippets", "nhan bo cong 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 ("nhan do cong snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( nhan do cong snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("nhan do cong snippets"))) or ("locating bug core snippets"))*.