Perhaps you should try some spelling variations:
thanh trung » thanh tung
thien danh » thien anh, thien dang, thien thanh
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
trung cua » truong cua, trung tuan, trung cap
cua nhung » va nhung
cong toan » cong tan, cong hoan, cong tuan
thanh lap » thanh san, thanh hai, thanh van
phan dau » phan tu, hang dau

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

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien danh - thanh trung cua nhung cong toan ((thanh lap) OR (((phan lap) OR (phan dau))))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien danh - thanh trung cua nhung cong toan ((thanh lap) or (((phan lap) OR (phan dau))))~".
• Adding a wildcard symbol may retrieve word variants: hoc thien danh - thanh trung cua nhung cong toan ((thanh lap) or (((phan lap) OR (phan dau))))*.