Perhaps you should try some spelling variations:
thieu lang » hieu lang, thieu khang, thieu quang
thanh dung » thanh duong, thanh tung, thanh hung
hoc thieu » toc thieu, hoc hien
cong cong » cong dong, trong cong, dang cong
dung cong » dung trong
than cau » toan cau, phan cau, than cap
khan cap » khan ap, than cap, khoan cam

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 lang - thanh dung luan ((cong cong) or (dung cong)) dan ((than cau) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu lang - thanh dung luan ((cong cong) OR (dung cong)) dan ((than cau) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu lang - thanh dung luan ((cong cong) or (dung cong)) dan ((than cau) or (khan cap))*.