Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
nhanh mang » nhanh lang, nhanh quang, nhanh thang
trung cong » truong cong, trong cong, trung uong
hanh mang » hanh trang, nhanh lang, thanh hang
cua trung » cua truong, xuan trung, cua nhung
cong san » cong tac
san khan » san khau, san khac, san phan
khan cap » khan ap, than cap, khoan cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (chieu sach)) - ((hanh mang) OR (nhanh mang)) cua trung cong san khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sach)) - ((hanh mang) OR (nhanh mang)) cua trung cong san khan cap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (chieu sach)) - ((hanh mang) OR (nhanh mang)) cua trung cong san khan cap".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu sach)) - ((hanh mang) OR (nhanh mang)) cua trung cong san khan cap*.