Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
trung tuan » trung thanh, trung tam, tran tuan
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung cap, dung cua
cong bang » cuong bang, dong bang, hong bang
hang tai » hang va, dung tai
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: hoc thieu sang - thanh ((trung cua) or (trung tuan)) nhung ((cong bang) or (hang tai)) phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh ((trung cua) OR (trung tuan)) nhung ((cong bang) OR (hang tai)) phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh ((trung cua) or (trung tuan)) nhung ((cong bang) or (hang tai)) phan cau*.