Perhaps you should try some spelling variations:
"thien bang lam tinh f.c." » "khien bang lam tinh f.c.", "thien ban lam tinh f.c.", "thien dang lam tinh f.c.", "thien mang lam tinh f.c.", "thien nang lam tinh f.c.", "thien quang lam tinh f.c.", "thien bang may tinh f.c.", "thien bang ha tinh f.c.", "thien bang ban tinh f.c.", "thien bang lam tinh hoc.", "thien bang lam tinh bac.", "thien bang lam tinh duc."
"thep bang nam dinh doc." » "thai bang nam dinh doc.", "te bang nam dinh doc.", "thu bang nam dinh doc.", "thep dang nam dinh doc.", "thep ban nam dinh doc.", "thep hang nam dinh doc.", "thep bang nam dinh duc.", "thep bang nam dinh ngoc.", "thep bang nam trinh doc."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("thien bang lam tinh f.c.") or ("thep bang nam dinh doc."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("thien bang lam tinh f.c.") OR ("thep bang nam dinh doc.")).
• Removing quotes may allow a broader search: (( thien bang lam tinh f.c. ) or ( thep bang nam dinh doc. )).
• Adding a wildcard symbol may retrieve word variants: (("thien bang lam tinh f.c.") or ("thep bang nam dinh doc."))*.