Perhaps you should try some spelling variations:
luong thanh » muong thanh, truong thanh, dong thanh
thieu sang » chieu sang, thieu khang, thieu quang
cuong cong » cong cong, luong cong, duong cong
cong luong » cong thuong, nang luong, cong dong
hoc thieu » toc thieu, hoc hien
trung cap » truong cao
thanh cau » thanh chau, thanh mau, nhanh 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 cap) or (trung tam)) cuong cong luong thanh cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu sang - thanh ((trung cap) OR (trung tam)) cuong cong luong thanh cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh ((trung cap) or (trung tam)) cuong cong luong thanh cau*.