Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets"
"vi dung code snippets" » "vi dung cong snippets", "vi dung co snippets", "vi dung de snippets", "va dung code snippets", "vi ung code snippets", "vi dong code snippets"
"locating bug core snippets" » "locating bug code snippets"

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"using java java snippets\") OR (\"vi dung code snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( using java java snippets ) OR ( vi dung code snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") OR ("vi dung code snippets"))) OR ("locating bug core snippets"))*.