Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
nhung cong » dung cong, thong cong, hang cong
trung cua » truong cua, trung tuan, dung cua
trung cap » truong cao, trung tam
thanh lap » thanh san, phan lap, thanh hai
cong dan » cong san, cong tan, huong dan
than cap » khan cap, thanh cac, than cua

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) OR (trung cap)) nhung cong dan ((than cap) or (thanh lap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - thanh ((trung cua) OR (trung cap)) nhung cong dan ((than cap) OR (thanh lap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien nhanh - thanh ((trung cua) OR (trung cap)) nhung cong dan ((than cap) or (thanh lap))".
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - thanh ((trung cua) OR (trung cap)) nhung cong dan ((than cap) or (thanh lap))*.