Perhaps you should try some spelling variations:
"using java core snippets" » "using data core snippets"
"hanh do ban snippets" » "thanh do ban snippets", "hanh dao ban snippets", "hanh de ban snippets", "hanh doi ban snippets", "hanh co ban snippets", "hanh do ben 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 do ban snippets"))) OR ("locating bug code snippets"))~.
• Removing quotes may allow a broader search: (((( using java core snippets ) or ( hanh do ban snippets ))) or ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java core snippets") or ("hanh do ban snippets"))) or ("locating bug code snippets"))*.