Perhaps you should try some spelling variations:
thanh tung » thanh cong
trinh phan » trinh han, trinh quan, thanh phan
dang cong » dung cong
hoc kinh » hoc sinh, luoc kinh
tung cua » trung cua, tuong cua, dung cua
cua dang » cua cong, cua ban
phan cau » phan dau, phan cac, phan tu
hoc ki » hoc ky, hoc khoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc kinh) or (hoc ki)) ngan - thanh tung cua dang cong trinh phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc kinh) OR (hoc ki)) ngan - thanh tung cua dang cong trinh phan cau.
• Adding a wildcard symbol may retrieve word variants: ((hoc kinh) or (hoc ki)) ngan - thanh tung cua dang cong trinh phan cau*.