Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
thieu khang » chieu khong, thieu quang
thuong cua » huong cua, thong cua, truong cua
hieu lang » chieu sang, hieu quang, nhieu tang
cua thong » cua thuong, cua khong, cua tong
thong anh » thong danh, thong lanh, hong anh
quang cao » nang cao, quang nam
quan cau » toan cau, quan ha, quan cua

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 (thieu khang)) - thanh thuong cua thong thong anh ((quan cau) OR (quang cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hieu lang) OR (thieu khang)) - thanh thuong cua thong thong anh ((quan cau) OR (quang cao))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu lang) or (thieu khang)) - thanh thuong cua thong thong anh ((quan cau) OR (quang cao))*".