Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hanh trung » thanh trung, hanh trang, manh trung
dung thanh » duong thanh, dong thanh, dang thanh
trung cap » truong cao, trung tam
tong cong » trong cong, cong cong, dung cong
cong dung » cuong dung, cong dong, cong luong
cap tong » cap nong, cap hoang, gap trong
thanh ca » thanh cha, thanh cac, thanh ha

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc ((hien nhanh) or (dieu hanh)) - hanh trung cap tong cong dung thanh ca~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc ((hien nhanh) OR (dieu hanh)) - hanh trung cap tong cong dung thanh ca*.