Perhaps you should try some spelling variations:
"using java can snippets" » "using data can snippets"
"dung ung trong snippets" » "dung dung trong snippets", "dung cung trong snippets", "dung vung trong snippets", "dung trung trong snippets", "dung quang trong snippets", "dung chung trong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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 can snippets\") OR (\"dung ung trong snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( using java can snippets ) OR ( dung ung trong snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("using java can snippets") OR ("dung ung trong snippets"))) OR ("locating bug code snippets"))*.