Perhaps you should try some spelling variations:
"using java java snippets" » "using data java snippets", "using java java slippers"
"dung dieu va snippets" » "duong dieu va snippets", "dang dieu va snippets", "dung hieu va snippets", "dung dieu van snippets", "dung lieu va snippets", "dung dien va snippets", "dung dieu va slippers"
"locating bug code snippets" » "locating bug code slippers", "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dung dieu va snippets") or ("using java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dung dieu va snippets") OR ("using java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dung dieu va snippets ) or ( using java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dung dieu va snippets") or ("using java java snippets"))) or ("locating bug code snippets"))*.