Perhaps you should try some spelling variations:
"nang thon java snippets" » "nong thon java snippets", "nang chon java snippets", "nang thuong java snippets", "nang think java snippets"
"dung cac che snippets" » "luong cac che snippets", "dung cho che snippets", "dung tai che snippets", "dung cac he snippets", "dung cac chien snippets", "dung cac chat 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: (((("nang thon java snippets") or ("dung cac che snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nang thon java snippets") OR ("dung cac che snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nang thon java snippets ) or ( dung cac che snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nang thon java snippets") or ("dung cac che snippets"))) or ("locating bug code snippets"))*.