Perhaps you should try some spelling variations:
thanh tung » thanh cong
trinh quan » tinh quang, trinh luat, trinh han
tong cong » trong cong, cong cong, dung cong
tung cua » trung cua, tuong cua, dung cua
cua tong » cua cong, cua dong, cua nong
quan tap » quan tai, quan lap, quan tam
so dieu » bo dieu, hoc dieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((so dieu) or (so lieu)) tinh - thanh tung cua tong cong trinh quan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so dieu) OR (so lieu)) tinh - thanh tung cua tong cong trinh quan tap.
• Adding a wildcard symbol may retrieve word variants: ((so dieu) or (so lieu)) tinh - thanh tung cua tong cong trinh quan tap*.