Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, nhieu tang
quang tuan » quang thanh, quan luan, quang cua
thong cong » trong cong, tong cong, thong thong
hieu lang » hieu quang, nhieu tang, hieu van
tung tuan » trung tuan, hung tuan, trang tuan
cong dang » cong dong, cong dan, cong dung
dang hanh » dang thanh, ban hanh, dang van
hanh cap » hanh cac, hanh cat, hanh cad

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

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