Perhaps you should try some spelling variations:
"phong chua cau snippets" » "chuong chua cau snippets", "phong ngua cau snippets", "phong thuy cau snippets", "phong chua cu snippets", "phong chua dau snippets", "phong cua cau 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: (((("phong chua 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: (((("phong chua cau snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phong chua cau snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phong chua cau snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.