Perhaps you should try some spelling variations:
"cuoc chung cach snippets" » "cuoc khung cach snippets", "nuoc chuong cach snippets", "quoc hung cach snippets", "cuoc phuong cach snippets", "cuoc phong cach snippets", "cuoc cung 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: (((("cuoc chung cach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuoc chung cach snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuoc chung cach snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuoc chung cach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.