Perhaps you should try some spelling variations:
thanh trung » thanh tung
hanh trang » hanh trinh, minh trang, tinh trang
hien xanh » hien hanh, hien nhanh, chieu xanh
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien xanh - ((((hanh trang) OR (canh tranh))) or (thanh trung)) cua dung cong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien xanh - ((((hanh trang) OR (canh tranh))) OR (thanh trung)) cua dung cong dan toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien xanh - ((((hanh trang) OR (canh tranh))) or (thanh trung)) cua dung cong dan toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc hien xanh - ((((hanh trang) OR (canh tranh))) or (thanh trung)) cua dung cong dan toan tap*.