Perhaps you should try some spelling variations:
"trinh cua code snippets" » "tinh cua code snippets", "trinh luat code snippets", "trinh quan code snippets", "trinh cua cong snippets", "trinh cfd code snippets", "trinh cua che snippets", "trinh cua bode snippets", "trinh cua congde snippets"
"dung cua co snippets" » "dung luan co snippets", "dung cho co snippets", "dung cua bo snippets", "dung cua cong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code 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 cua code snippets") or ("dung cua co snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh cua code snippets") OR ("dung cua co snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh cua code snippets ) or ( dung cua co snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh cua code snippets") or ("dung cua co snippets"))) or ("locating bug code snippets"))*.