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
trung tan » trung tuan, trung tran, trung tang
tan dung » tran dung, tin dung, van dung
cong ban » cong bang, cong tan, cong dan
cong san » cong tac

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 tan dung ((cong ban) OR (cong san)) nhu cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh trung tan dung ((cong ban) OR (cong san)) nhu cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh trung tan dung ((cong ban) OR (cong san)) nhu cau*.