Perhaps you should try some spelling variations:
thieu sang » chieu sang, thieu khang, thieu quang
hanh trang » thanh trung, hanh trinh, minh trang
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
cua thong » cua thuong, cua khong, cua tong
cong san » cong tac
san tuan » van tuan, san luan, san quan
tuan thu » toan thuc, van thu

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 - ((hanh trang) OR (canh tranh)) cua thong cong san tuan thu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu sang - ((hanh trang) OR (canh tranh)) cua thong cong san tuan thu".
• Adding a wildcard symbol may retrieve word variants: hoc thieu sang - ((hanh trang) OR (canh tranh)) cua thong cong san tuan thu*.