Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trang » canh tranh, hanh trinh, minh trang
dung cong » dung trong
vat dung » van dung, va dung, viet dung
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap

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) or (chieu tinh)) - ((hanh trang) OR (thanh trung)) vat dung cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (chieu tinh)) - ((hanh trang) OR (thanh trung)) vat dung cong san than cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (chieu tinh)) - ((hanh trang) OR (thanh trung)) vat dung cong san than cau*".