Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dong duc tang snippets" » "duong duc tang snippets", "dong duoc tang snippets", "dong luc tang snippets", "dong duc thang snippets", "dong duc tan snippets", "dong tuc tang 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 ("dong duc tang snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( dong duc tang snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("dong duc tang snippets"))) or ("locating bug core snippets"))*.