Perhaps you should try some spelling variations:
trung tuan » trung thanh, trung tam, tran tuan
truong cua » truong ca, truong quan, truong cao
hien xanh » hien hanh, hien nhanh, chieu xanh
tong cong » trong cong, cong cong, dung cong
van tuan » van quan, van ban, anh tuan
van than » van thanh, van thang, van phan

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 ((trung tuan) or (truong cua)) tong cong ((van tuan) or (van than)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - hanh ((trung tuan) OR (truong cua)) tong cong ((van tuan) OR (van than)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - hanh ((trung tuan) or (truong cua)) tong cong ((van tuan) or (van than)) cau*.