Perhaps you should try some spelling variations:
thien chanh » thien thanh, thien chinh, hien hanh
thanh trung » thanh tung
tien thanh » tien thinh, tran thanh, den thanh
nhung cong » dung cong, thong cong, hang cong
tien manh » tien anh, tieng anh, tran manh
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((((tien manh) OR (tien thanh))) or (thien chanh)) - thanh trung cua nhung cong van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((tien manh) OR (tien thanh))) OR (thien chanh)) - thanh trung cua nhung cong van tuan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((tien manh) OR (tien thanh))) or (thien chanh)) - thanh trung cua nhung cong van tuan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((((tien manh) OR (tien thanh))) or (thien chanh)) - thanh trung cua nhung cong van tuan ban*.