Perhaps you should try some spelling variations:
"trinh thep trong snippets" » "trinh ghep trong snippets", "trinh theo trong snippets", "trinh thiet trong snippets", "trinh tiep trong snippets", "trinh thap trong snippets", "trinh he trong snippets", "trinh thep trong slippers"
"dung bug code snippets" » "dung dung code snippets", "dung hung code snippets", "dung rung code snippets", "dung bug code slippers", "dung bug core snippets"
"locating bug code snippets" » "locating bug code slippers", "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 thep trong snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh thep trong snippets") OR ("dung bug code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh thep trong snippets ) or ( dung bug code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh thep trong snippets") or ("dung bug code snippets"))) or ("locating bug code snippets"))*.