Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, hien nhanh, chieu xanh
ban hangh » ban hanh, ban thanh, van hanh
hanh han » hanh nhan, hanh phan, hanh san
va thong » va thuong, va phuong, he thong
ban hang » ngan hang
han va » hang va, hanh va, nhan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - hanh han va thong cong ((ban hang) or (ban hangh)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh han va thong cong ((ban hang) OR (ban hangh)) tap*.