Perhaps you should try some spelling variations:
thanh thuong » thanh chuong, thanh phuong, khanh thuong
thanh huong » thanh hung, thanh cong, anh huong
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
dung cong » dung trong
cong bang » cuong bang, dong bang, hong bang
mai dung » mai hung, mai huong, manh dung
than cao » toan cao, thai cao, than sao
than cap » khan cap, thanh lap, thanh cac

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 thuong) OR (thanh huong)) mai dung cong bang ((than cao) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - ((thanh thuong) OR (thanh huong)) mai dung cong bang ((than cao) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - ((thanh thuong) OR (thanh huong)) mai dung cong bang ((than cao) or (than cap))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - ((thanh thuong) OR (thanh huong)) mai dung cong bang ((than cao) or (than cap))*.