Perhaps you should try some spelling variations:
hanh tranh » canh tranh, hanh trinh, hanh trang
chieu sang » chieu sach, chieu xanh, nhieu tang
hieu lang » hieu quang, nhieu tang, hieu van
tranh cua » doanh cua, manh cua
dang cong » dung cong
cua dang » cua cong, cua ban
anh nang » ganh nang, anh dang, anh sang
anh bang » anh hoang, anh quang, tinh bang

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

• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((hieu lang) OR (chieu sang)) - hanh tranh cua dang cong ((anh nang) OR (anh bang)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((hieu lang) or (chieu sang)) - hanh tranh cua dang cong ((anh nang) OR (anh bang)) cao~".
• Adding a wildcard symbol may retrieve word variants: toc ((hieu lang) or (chieu sang)) - hanh tranh cua dang cong ((anh nang) OR (anh bang)) cao*.