Perhaps you should try some spelling variations:
"trinh doc code snippets" » "trinh do code snippets", "trinh hoa code snippets", "trinh co code snippets", "trinh doc core snippets", "trinh doc code slippers"
"dung dung dat snippets" » "duong dung dat snippets", "ung dung dat snippets", "dung ung dat snippets", "dung dung va snippets", "dung dung tai snippets", "dung dung dat slippers"
"locating bug code snippets" » "locating bug core 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 doc code snippets") or ("dung dung dat snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh doc code snippets") OR ("dung dung dat snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh doc code snippets ) or ( dung dung dat snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh doc code snippets") or ("dung dung dat snippets"))) or ("locating bug code snippets"))*.