Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tung » thanh cong
nhung cong » dung cong, thong cong, nhung don
hoc thieu » toc thieu, hoc hien
hang cong » dang cong, hang nong, bang cong
tung cua » trung cua, tuong cua, dung cua
toan tai » toan tap, doanh tai, toan ban
toan cao » toan ban, toan tap

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 tung cua ((nhung cong) or (hang cong)) tac ((toan tai) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh tung cua ((nhung cong) OR (hang cong)) tac ((toan tai) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh tung cua ((nhung cong) or (hang cong)) tac ((toan tai) or (toan cao))*.