Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
duong cong » dung cong, luong cong, duong trong
hoc thieu » toc thieu, hoc hien
tang luan » dung luan
tang cua » mang cua, hang cua, thong cua
cong dan » cong san, cong tan, huong dan
toan cao » toan tap
toan ban » van ban

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)) duong cong dan ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu khang - hanh ((tang cua) OR (tang luan)) duong cong dan ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu khang - hanh ((tang cua) OR (tang luan)) duong cong dan ((toan cao) or (toan ban))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu khang - hanh ((tang cua) OR (tang luan)) duong cong dan ((toan cao) or (toan ban))*.