Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hanh tranh » canh tranh, hanh trinh, hanh trang
cua truong » xuan truong, cac truong, xa truong
cua trung » xuan trung, cua nhung, ba trung
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
than cap » khan cap, thanh lap, thanh cac

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