Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
canh trinh » canh tranh, hanh trinh, canh tinh
nhung hung » nhung huong, nhung vung, nhung phuong
nhung dung » phuong dung, ung dung, thong dung
trinh han » trinh quan
ho chieu » theo chieu, hoc thieu, doi chieu
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: ho chieu sang - canh trinh han ((nhung hung) or (nhung dung)) tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - canh trinh han ((nhung hung) OR (nhung dung)) tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - canh trinh han ((nhung hung) or (nhung dung)) tinh toan cau*.