Perhaps you should try some spelling variations:
thanh trung » thanh tung
hien nhanh » hien hanh, thien thanh, tien thanh
cua thong » cua thuong, cua khong, suat thong
cua tong » cua cong, cua dong, cua nong
cong dan » cong san, cong tan, huong dan
dan than » dan chan, ban than, van than
than ban » thanh ban, toan ban, than man

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 nhanh - thanh trung ((cua thong) OR (cua tong)) cong dan than ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien nhanh - thanh trung ((cua thong) OR (cua tong)) cong dan than ban".
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - thanh trung ((cua thong) OR (cua tong)) cong dan than ban*.