Perhaps you should try some spelling variations:
thieu quang » hieu quang, thien quan, trien quang
thanh trung » thanh tung
nhiet nang » nhiet dong, viet nang, nhieu tang
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong san » cong tac
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi ((nhiet nang) or (thieu quang)) - thanh trung cua nhung cong san ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi ((nhiet nang) OR (thieu quang)) - thanh trung cua nhung cong san ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoi ((nhiet nang) or (thieu quang)) - thanh trung cua nhung cong san ((toan cau) or (toan ban))*.