Perhaps you should try some spelling variations:
thieu khang » chieu khong
thieu quang » hieu quang, thien quan, trien quang
nhung cong » dung cong, thong cong, hang cong
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
cong danh » cuong danh, cong dan, cong thanh
tang cua » mang cua, hang cua, tang luan
tuan cau » toan cau, quan cau, tuan cu
tuan tu » tuan thu, tran tu, toan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu khang) OR (thieu quang)) - hanh tang cua nhung cong danh ((tuan cau) or (tuan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu khang) OR (thieu quang)) - hanh tang cua nhung cong danh ((tuan cau) OR (tuan tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu khang) OR (thieu quang)) - hanh tang cua nhung cong danh ((tuan cau) or (tuan tu))".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu khang) OR (thieu quang)) - hanh tang cua nhung cong danh ((tuan cau) or (tuan tu))*.