Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong trong cot snippets" » "cong trong code snippets", "cong thuong cot snippets", "cong trinh cot snippets", "dung trong cot snippets", "cong tong cot snippets", "cong trong co snippets", "cong trong mot snippets"
"dong java java snippets" » "dong va java 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: (((("dong java java snippets") or ("cong trong cot snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong java java snippets") OR ("cong trong cot snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong java java snippets ) or ( cong trong cot snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong java java snippets") or ("cong trong cot snippets"))) or ("locating bug core snippets"))*.