Perhaps you should try some spelling variations:
thanh trung » thanh tung
hien xanh » hien hanh, hien nhanh, chieu xanh
trung cua » truong cua, trung tuan, trung cap
dang cong » dung cong
trinh san » trinh han, trinh quan, trinh toan
cua dang » cua cong, cua ban
san ban » sang ban, van ban, can ban

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 trung cua dang cong trinh san ban~.
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - thanh trung cua dang cong trinh san ban*.