Perhaps you should try some spelling variations:
"trinh chao code snippets" » "trinh chat code snippets", "trinh han code snippets", "trinh co code snippets"
"dang hung code slippers" » "dang quang code slippers", "manh hung code slippers", "dang cong code slippers"
"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 chao code snippets") or ("dang hung code slippers"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh chao code snippets") OR ("dang hung code slippers"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh chao code snippets ) or ( dang hung code slippers ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh chao code snippets") or ("dang hung code slippers"))) or ("locating bug code snippets"))*.