Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cuon sach cau snippets" » "cuon sach code snippets", "duong sach cau snippets", "cuoc cach cau snippets", "co sach cau snippets", "cuon sach cap snippets", "cuon sach dau snippets", "cuon sach mau snippets"
"dung java java snippets" » "dung va java 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 cau snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cuon sach cau snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cuon sach cau snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cuon sach cau snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.