Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
hanh mang » nhanh mang, hanh trang, nhanh lang
dang cong » dung cong
cong tinh » cong trinh, cong vinh, long tinh
tinh nang » trinh nang, tin nang, tich nang
cua dang » cua cong, cua ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu lang) OR (chieu sang)) - ((hanh mang) or (tran quang)) cua dang cong tinh nang cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu lang) OR (chieu sang)) - ((hanh mang) OR (tran quang)) cua dang cong tinh nang cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu lang) OR (chieu sang)) - ((hanh mang) or (tran quang)) cua dang cong tinh nang cao".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu lang) OR (chieu sang)) - ((hanh mang) or (tran quang)) cua dang cong tinh nang cao*.