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
cua dung » cua dang, cua dong, qua dung
cong ban » cong bang, cong san, cong tan
than cau » phan cau, than cap, thanh chau
toan cau » 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 trung ((cua dung) or (cua cong)) cong ban ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh trung ((cua dung) OR (cua cong)) cong ban ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh trung ((cua dung) or (cua cong)) cong ban ((than cau) or (toan cau))*.