Perhaps you should try some spelling variations:
"dung dung de snippets" » "duong dung de snippets", "ung dung de snippets", "dung ung de snippets", "dung dung he snippets", "dung dung dat snippets"
"trinh luat lua snippets" » "trinh luat luat snippets", "trinh luat sua snippets", "trinh luat cua snippets"
"locating bug code snippets" » "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: (((("trinh luat lua snippets") or ("dung dung de snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh luat lua snippets") OR ("dung dung de snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh luat lua snippets ) or ( dung dung de snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh luat lua snippets") or ("dung dung de snippets"))) or ("locating bug code snippets"))*.