Perhaps you should try some spelling variations:
thanh tung » thanh cong
hien xanh » hien nhanh, chieu xanh, hien khanh
hien hanh » dieu hanh
tao thong » giao thong, toan thong, tao khoang
tao trong » cay trong, ro trong
cong van » cong vang, cong san, song van
van phan » van phong, van thanh, luan phan
phan cau » phan dau, phan cac, phan tu

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 (hien hanh)) - thanh tung ((tao thong) OR (tao trong)) cong van phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((hien xanh) OR (hien hanh)) - thanh tung ((tao thong) OR (tao trong)) cong van phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien xanh) or (hien hanh)) - thanh tung ((tao thong) OR (tao trong)) cong van phan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien xanh) or (hien hanh)) - thanh tung ((tao thong) OR (tao trong)) cong van phan cau*.