Perhaps you should try some spelling variations:
nhieu tang » chieu sang, nhiet nang
thanh hung » thanh huong, thanh tung, thanh trung
hieu lang » chieu sang, hieu quang, hieu van
tong cong » trong cong, cong cong, dung cong
cong gian » chong gian, con gian, cong giao
nhung cau » chung cu, nhung bai
hung cua » huong cua, chung cua, khung cua
cua tong » cua cong, cua dong, cua nong

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hieu lang) OR (nhieu tang)) - thanh hung cua tong cong gian ((nhung cau) or (nhu cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu lang) OR (nhieu tang)) - thanh hung cua tong cong gian ((nhung cau) OR (nhu cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu lang) OR (nhieu tang)) - thanh hung cua tong cong gian ((nhung cau) or (nhu cau))".
• Adding a wildcard symbol may retrieve word variants: hoc ((hieu lang) OR (nhieu tang)) - thanh hung cua tong cong gian ((nhung cau) or (nhu cau))*.