Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
thanh tung » thanh cong
doanh cua » doanh luan
hang cong » dang cong, hang nong, bang cong
dan thanh » dang thanh, danh thanh, ban thanh
manh cua » ban cua
cong dan » cong san, cong tan, huong dan

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 - hanh ((manh cua) OR (doanh cua)) hang cong dan thanh tung~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien nhanh - hanh ((manh cua) OR (doanh cua)) hang cong dan thanh tung".
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - hanh ((manh cua) OR (doanh cua)) hang cong dan thanh tung*.