Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"luan trinh cac snippets" » "luan trinh code snippets", "xuan trinh cac snippets", "luan tinh cac snippets", "luan tranh cac snippets", "luan trinh cau snippets", "luan trinh chat snippets", "luan trinh chao 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: (((("luan trinh cac snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luan trinh cac snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( luan trinh cac snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luan trinh cac snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.