Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
trung tuan » trung thanh, tran tuan, truong thanh
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
cong nhan » cong nhat, cong thanh, cong san
nhung cau » nhung bai, nhu cau

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 tuan) or (trung tam)) thong cong nhan ((nhung cau) or (chung cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh ((trung tuan) OR (trung tam)) thong cong nhan ((nhung cau) OR (chung cu)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh ((trung tuan) or (trung tam)) thong cong nhan ((nhung cau) or (chung cu))*.