Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van dung von snippets" » "van dung code snippets", "van dong von snippets", "xay dung von snippets", "tin dung von snippets", "van dung cong snippets", "van dung va snippets"
"using java java snippets" » "using data java 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 (\"van dung von snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( using java java snippets ) OR ( van dung von snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java java snippets") OR ("van dung von snippets"))) OR ("locating bug core snippets"))*.