Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
tranh ban » trinh ban, tranh hang, tranh luan
tran ban » tran van, toan ban, tran bai

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 trung tam ((hang cong) or (dang cong)) tac ((tran ban) OR (tranh ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh trung tam ((hang cong) OR (dang cong)) tac ((tran ban) OR (tranh ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh trung tam ((hang cong) or (dang cong)) tac ((tran ban) OR (tranh ban))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh trung tam ((hang cong) or (dang cong)) tac ((tran ban) OR (tranh ban))*.