Perhaps you should try some spelling variations:
"hien hanh nam dinh f.c." » "dieu hanh nam dinh f.c.", "hien thanh nam dinh f.c.", "hien hanh lam dinh f.c.", "hien hanh ngay dinh f.c.", "hien hanh nam dinh duc.", "hien hanh nam dinh doc.", "hien hanh nam dinh hoc."
"thep xanh lam tinh hoc." » "heo xanh lam tinh hoc.", "thep bang lam tinh hoc.", "thep hinh lam tinh hoc.", "thep hanh lam tinh hoc.", "thep dinh lam tinh hoc.", "thep xanh a tinh hoc.", "thep xanh may tinh hoc.", "thep xanh ha tinh hoc.", "thep xanh ban tinh hoc.", "thep xanh lam sinh hoc.", "thep xanh lam tin hoc.", "thep xanh lam hinh hoc."
"thep hanh kiem dinh cac." » "thep hinh kiem dinh cac.", "them thanh kiem dinh cac.", "thuc hanh kiem dinh cac.", "thep khanh kiem dinh cac.", "thep hanh kem dinh cac.", "thep anh kiem dinh cac.", "thep hanh kiem tinh cach.", "thep hanh kiem dinh chuc.", "thep hanh kiem dinh chau."

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

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