Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"de dang tran snippets" » "de dang thanh snippets", "de quang tran snippets", "de hoang tran snippets", "da dang tran snippets", "le dang tran snippets", "de tang tran 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 ("de dang tran snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( de dang tran snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("de dang tran snippets"))) or ("locating bug core snippets"))*.