Perhaps you should try some spelling variations:
hieu quang » thieu quang, hieu quan, hieu qua
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
thanh cac » hanh cac, thanh bac, thanh ca
cong cua » cong cu, dong cua, huong cua
cong ban » cong bang, cong san, cong tan
than cap » khan cap, thanh lap, than cua
tinh » trinh, dinh, minh

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((trieu tinh) or (hieu quang)) - thanh cong cua nhung cong ban ((than cap) OR (thanh cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((trieu tinh) OR (hieu quang)) - thanh cong cua nhung cong ban ((than cap) OR (thanh cac)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((trieu tinh) or (hieu quang)) - thanh cong cua nhung cong ban ((than cap) OR (thanh cac))".
• Adding a wildcard symbol may retrieve word variants: ho ((trieu tinh) or (hieu quang)) - thanh cong cua nhung cong ban ((than cap) OR (thanh cac))*.