Perhaps you should try some spelling variations:
tranh luan » trinh luan, trinh luat, doanh luan
chieu sang » chieu sach, chieu xanh, nhieu tang
luan trinh » xuan trinh, luan tinh, luan tranh
trinh cong » trinh dung
hieu lang » hieu quang, nhieu tang, hieu van
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sang) OR (hieu lang)) - canh tranh luan trinh cong tan toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sang) OR (hieu lang)) - canh tranh luan trinh cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sang) OR (hieu lang)) - canh tranh luan trinh cong tan toan cau*.