Perhaps you should try some spelling variations:
"locating bugs code snippets" » "locating bug code snippets"
"data using java snippets" » "data using data snippets"
"dung ca cham snippets" » "dung cua cham snippets", "dung cac cham snippets", "dung cam cham snippets", "dung cau cham snippets", "dung va cham snippets", "dung co cham 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 ca cham snippets\"))) OR (\"locating bugs code snippets\"))~".
• Removing quotes may allow a broader search: (((( data using java snippets ) OR ( dung ca cham snippets ))) OR ( locating bugs code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("data using java snippets") OR ("dung ca cham snippets"))) OR ("locating bugs code snippets"))*.