Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh dung » thanh duong, thanh tung, thanh hung
cua thuong » cua truong, cua phuong, ca thuong
hoc thieu » toc thieu, hoc hien
khang cap » khang chan, hang ca, hang cau
dung cua » dung luan, dung cho
dong tan » duong tan, dong san, cong tan
dong tai » dung tai, luong tai, cong tac
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 xanh - thanh dung cua thuong ((dong tan) OR (dong tai)) ((khang cap) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh dung cua thuong ((dong tan) OR (dong tai)) ((khang cap) OR (khan cap))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh dung cua thuong ((dong tan) OR (dong tai)) ((khang cap) or (khan cap))*".