Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
tang luan » dung luan
cong danh » cuong danh, cong dan, cong thanh
tang cua » mang cua, hang cua, thong cua
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 - hanh ((tang cua) OR (tang luan)) nhung cong danh ((tuan cau) or (tuan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu khang - hanh ((tang cua) OR (tang luan)) nhung cong danh ((tuan cau) OR (tuan tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu khang - hanh ((tang cua) OR (tang luan)) nhung cong danh ((tuan cau) or (tuan tu))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu khang - hanh ((tang cua) OR (tang luan)) nhung cong danh ((tuan cau) or (tuan tu))*.