Perhaps you should try some spelling variations:
"cuon trinh chat snippets" » "chuong trinh chat snippets", "cong trinh chat snippets", "xuan trinh chat snippets", "cuon tinh chat snippets", "cuon trinh luat snippets", "cuon trinh han 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: (((("cuon trinh chat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuon trinh chat snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuon trinh chat snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuon trinh chat snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.