Perhaps you should try some spelling variations:
"ninh duoc cac snippets" » "sinh duoc cac snippets", "ninh duc cac snippets", "nganh duoc cac snippets", "ninh cuoc cach snippets", "ninh duoc chat snippets", "ninh duong cac snippets"
"dung java java snippets" » "dung va java 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: (((("ninh duoc cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ninh duoc cac snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( ninh duoc cac snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ninh duoc cac snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.