Perhaps you should try some spelling variations:
thanh trung » thanh tung
trung tham » trung tam, trung thanh, trung thang
tham nhung » thi nhung
nhung cong » dung cong, thong cong, hang cong
mot chieu » doi chieu, ho chieu
theo chu » theo chieu, cho chu, chao chu
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((mot chieu) or (theo chu)) xanh - thanh trung tham nhung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((mot chieu) OR (theo chu)) xanh - thanh trung tham nhung cong tac toan cau*.