Perhaps you should try some spelling variations:
khuong tinh » chuong trinh, phuong trinh, phuong binh
theo chieu » theo tieu, ho chieu, theo chu
chieu sang » chieu sach, chieu xanh, hieu lang
chu khuong » chu khong, chu phuong, chuc thuong
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
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: theo chieu sang - hanh ((trung cua) OR (trung cap)) chu khuong tinh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu sang - hanh ((trung cua) OR (trung cap)) chu khuong tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: theo chieu sang - hanh ((trung cua) OR (trung cap)) chu khuong tinh toan cau*.