Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
trung tuan » trung thanh, trung tam, tran tuan
tranh cua » doanh cua, manh cua
dung cong » dung trong
cong manh » cong danh, duong manh, cong thanh
ho chieu » theo chieu, hoc thieu, doi chieu
toan cau » toan ban, toan tap, toan tai
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 - hanh ((trung tuan) or (tranh cua)) dung cong manh ((toan cau) OR (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh ((trung tuan) OR (tranh cua)) dung cong manh ((toan cau) OR (toan cao)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sang - hanh ((trung tuan) or (tranh cua)) dung cong manh ((toan cau) OR (toan cao))".
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh ((trung tuan) or (tranh cua)) dung cong manh ((toan cau) OR (toan cao))*.