Perhaps you should try some spelling variations:
thanh nhang » thanh nhan, thanh hang, thanh thang
thong cong » trong cong, tong cong, thong thong
hien xanh » hien hanh, hien nhanh, chieu xanh
hanh nhan » thanh nhan, danh nhan, anh nhan
cua thong » cua thuong, cua khong, cua tong
dan toan » van toan, dan than, manh toan
van tuan » van quan, van ban, anh tuan

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 - ((thanh nhang) or (hanh nhan)) cua thong cong ((dan toan) or (van tuan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((thanh nhang) OR (hanh nhan)) cua thong cong ((dan toan) OR (van tuan)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((thanh nhang) or (hanh nhan)) cua thong cong ((dan toan) or (van tuan)) cao*.