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