Perhaps you should try some spelling variations:
"dinh truoc cach snippets" » "binh truoc cach snippets", "dinh thuoc cach snippets", "dinh thuc cach snippets", "dinh cuoc cach snippets", "dinh truoc cang 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 truoc 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: (((("dinh truoc cach snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dinh truoc cach snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dinh truoc cach snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.