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