Perhaps you should try some spelling variations:
"using java core snippets" » "using data core snippets"
"hanh de toi snippets" » "hanh ve toi snippets", "hanh kem toi snippets", "hanh de thoi snippets", "hanh de toni snippets", "hanh dem toi snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs 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 core snippets") OR ("hanh de toi snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( using java core snippets ) or ( hanh de toi snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java core snippets") or ("hanh de toi snippets"))) or ("locating bug code snippets"))*.