Perhaps you should try some spelling variations:
triet tinh » trieu tinh, trien tinh, tri tinh
trien kinh » tri kinh, trinh kinh, trien dich
thanh tung » thanh cong
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong san » cong tac
san phan » san pham, van phan, sat phan
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: mon ((triet tinh) OR (trien kinh)) - ((thanh tung) or (thanh trung)) cua dung cong san phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: mon ((triet tinh) OR (trien kinh)) - ((thanh tung) OR (thanh trung)) cua dung cong san phan cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "mon ((triet tinh) OR (trien kinh)) - ((thanh tung) or (thanh trung)) cua dung cong san phan cau*".