Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
lanh tranh » canh tranh, lan tranh, hanh trinh
nhung cong » dung cong, thong cong, hang cong
lanh manh » van manh, anh anh, lan oanh
cua nhung » va nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
lan anh » van anh, tuan anh

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - ((((lanh manh) OR (lan anh))) OR (lanh tranh)) cua nhung cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - ((((lanh manh) OR (lan anh))) or (lanh tranh)) cua nhung cong tac toan cau~".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - ((((lanh manh) OR (lan anh))) or (lanh tranh)) cua nhung cong tac toan cau*.