Perhaps you should try some spelling variations:
thanh trung » thanh tung
hanh trang » canh tranh, hanh trinh, minh trang
hien xanh » hien hanh, hien nhanh, chieu xanh
dung cong » dung trong
qua dung » quang dung, su dung, qua song
cong van » cong vang, cong san, song van
van toan » van tuan, van tan, van thanh
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) or (dieu hanh)) - ((hanh trang) or (thanh trung)) qua dung cong van toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (dieu hanh)) - ((hanh trang) OR (thanh trung)) qua dung cong van toan tap.
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (dieu hanh)) - ((hanh trang) or (thanh trung)) qua dung cong van toan tap*.