Perhaps you should try some spelling variations:
"cuon sach gian snippets" » "duong sach gian snippets", "cuoc cach gian snippets", "co sach gian snippets", "cuon sach giao snippets", "cuon sach han snippets", "cuon sach tien snippets", "cuon sach gian slippers"
"dung java java snippets" » "dung va java snippets", "dung java java slippers"
"locating bug code snippets" » "locating bug code slippers", "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 sach gian 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 sach gian snippets") OR ("dung java java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cuon sach gian snippets ) or ( dung java java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuon sach gian snippets") or ("dung java java snippets"))) or ("locating bug code snippets"))*.