Perhaps you should try some spelling variations:
"using java code snippets" » "using data code snippets"
"dung cau doi snippets" » "dung chau doi snippets", "dung cu doi snippets", "dung cac doi snippets", "dung cau hoi snippets", "dung cau do snippets", "dung cau noi snippets"
"locating bug core snippets" » "locating bug code snippets"

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

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