Perhaps you should try some spelling variations:
truong cong » trong cong, truong dong, truong long
thieu sang » chieu sang, thieu khang, thieu quang
truong cac » truong cao, trong cac, truong ca
hoc thieu » toc thieu, hoc hien
trung cac » trung cap, trong cac, trung ca
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
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: hoc thieu sang - thanh ((trung cac) OR (truong cac)) truong cong manh toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - thanh ((trung cac) OR (truong cac)) truong cong manh toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - thanh ((trung cac) OR (truong cac)) truong cong manh toan ban*.