Perhaps you should try some spelling variations:
huong trinh » chuong trinh, phuong trinh, cong trinh
chieu sang » chieu sach, chieu xanh, nhieu tang
cong huong » cong thuong, cong luong, cong hung
trinh toan » tinh toan, thanh toan, trinh han
hieu lang » hieu quang, nhieu tang, hieu van
hanh ban » thanh ban, hang ban, hanh san
toan cau » toan cao, toan ban, toan tap
ban cua » ban quan

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) OR (hieu lang)) - hanh ban cua cong huong trinh toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sang) OR (hieu lang)) - hanh ban cua cong huong trinh toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sang) OR (hieu lang)) - hanh ban cua cong huong trinh toan cau*.