Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"so cong dot snippets" » "so cong mot snippets", "so cong dong snippets", "so cong doan snippets", "bo cong dot snippets", "cao cong dot snippets", "hoc cong dot 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 ("so cong dot snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( using java code snippets ) or ( so cong dot snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java code snippets") or ("so cong dot snippets"))) or ("locating bug core snippets"))*.