Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
chieu xanh » chieu sach, chieu sang, chieu tinh
cap dong » cao dong, cau dong, cac dong
cong tac » cong ty
tac tren » rac tren, tai tren, tap tren
tren cau » tren ca, tren cay, tren tau
ca dong » cao dong, cau dong, cua dong

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: theo chieu xanh - thanh trung ((cap dong) OR (ca dong)) cong tac tren cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chieu xanh - thanh trung ((cap dong) OR (ca dong)) cong tac tren cau".
• Adding a wildcard symbol may retrieve word variants: theo chieu xanh - thanh trung ((cap dong) OR (ca dong)) cong tac tren cau*.