Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"duoc bac cau snippets" » "duoc cac cau snippets", "duoc ban cau snippets", "duoc bat cau snippets", "duoc bach cau snippets", "duoc ba cau snippets", "duoc bac can snippets"
"locating bug code snippets" » "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: (((("duoc bac cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duoc bac cau snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duoc bac cau snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duoc bac cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.