Perhaps you should try some spelling variations:
thanh trung » thanh tung
hien hanh » dieu hanh
trung cua » truong cua, trung tuan, trung cap
tong cong » trong cong, cong cong, dung cong
cua tong » cua cong, cua dong, cua nong
cong san » cong tac
van tu » van thu, van du, van tuan

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 hanh - thanh trung cua tong cong san ((van tu) OR (ban tu))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien hanh - thanh trung cua tong cong san ((van tu) OR (ban tu))".
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - thanh trung cua tong cong san ((van tu) OR (ban tu))*.