Perhaps you should try some spelling variations:
"trinh lam code snippets" » "trinh lap code snippets", "trinh tam code snippets", "trinh cam code snippets", "trinh lbm code snippets", "trinh lam co snippets", "trinh lam code slippers"
"van dong code snippets" » "van dong co snippets", "van dong che snippets", "van dong cong snippets", "van dong code 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 lam code snippets") or ("van dong code snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trinh lam code snippets") OR ("van dong code snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trinh lam code snippets ) or ( van dong code snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trinh lam code snippets") or ("van dong code snippets"))) or ("locating bug code snippets"))*.