Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"trinh can cau snippets" » "trinh can code snippets", "trinh han cau snippets", "trinh san cau snippets", "trinh cau cau snippets", "trinh van cau snippets", "trinh ban cau snippets", "trinh ca cau 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: (((("trinh can 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: (((("trinh can cau snippets") OR ("dung java java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( trinh can cau snippets ) or ( dung java java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh can cau snippets") or ("dung java java snippets"))) or ("locating bug core snippets"))*.