Perhaps you should try some spelling variations:
chieu sang » chieu xanh, hieu lang, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
hanh mang » nhanh mang, hanh trang, nhanh lang
dung cong » dung trong
cong tinh » cong trinh, cong vinh, long tinh
mang cua » manh cua, dung cua, ban cua
cua dung » cua dang, cua dong, qua dung
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: hoc ((chieu sang) OR (chieu sach)) - hanh mang cua dung cong tinh toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu sang) OR (chieu sach)) - hanh mang cua dung cong tinh toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) OR (chieu sach)) - hanh mang cua dung cong tinh toan cao*.