Perhaps you should try some spelling variations:
"data using java snippets" » "data using data snippets", "data using java slippers"
"dung anh trac snippets" » "dung danh trac snippets", "duong anh trac snippets", "dong anh trac snippets", "dung sinh trac snippets", "dung anh tuan snippets", "dung anh thuc snippets", "dung anh trac slippers"
"locating bug code snippets" » "locating bug code slippers", "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: "((((\"data using java snippets\") OR (\"dung anh trac snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( data using java snippets ) OR ( dung anh trac snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("data using java snippets") OR ("dung anh trac snippets"))) OR ("locating bug code snippets"))*.