Perhaps you should try some spelling variations:
thanh thuong » thanh huong, thanh chuong, thanh phuong
thanh truong » thanh trung, thanh tung, thanh huong
thieu xanh » chieu xanh, hieu manh, thien anh
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
cong dan » cong san, cong tan, huong dan
than cao » toan cao, than cap, than sao
thai cao » tai cao, thoai cac, thuat cao

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