Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
cua nhung » va nhung
tung cua » trung cua, tuong cua, dung cua
cong dan » cong san, cong tan, huong dan
than cao » toan cao, than cap, than sao
thai cao » tai cao, thoai cac, thuat cao

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