Perhaps you should try some spelling variations:
"dinh chon can snippets" » "dinh cuong can snippets", "dinh phong can snippets", "dinh chinh can snippets", "dinh chon cac snippets", "dinh cho can snippets", "dinh chon van 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: (((("dinh chon can snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dinh chon can snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dinh chon can snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dinh chon can snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.