Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"tang dan hanh snippets" » "tang van hanh snippets", "tung dan hanh snippets", "tang luan hanh snippets", "tang dang hanh snippets", "tang dan khanh snippets", "tang dan thanh 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 ("tang dan hanh snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( tang dan hanh snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("tang dan hanh snippets"))) or ("locating bug core snippets"))*.