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 tuan » van quan, van ban, anh tuan
ban tu » van tu

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 tuan) or (ban tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien hanh - thanh trung cua tong cong san ((van tuan) OR (ban tu)).
• Adding a wildcard symbol may retrieve word variants: hoc hien hanh - thanh trung cua tong cong san ((van tuan) or (ban tu))*.