Perhaps you should try some spelling variations:
"dung java java snippets" » "dung va java snippets"
"cong nho cau snippets" » "cong nhoi cau snippets", "cong cho cau snippets", "cong nha cau snippets", "cong nhu cau snippets", "cong nano cau snippets", "cong nhin cau 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: (((("cong nho 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: (((("cong nho cau snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cong nho cau snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong nho cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.