Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
thanh thong » thanh thuong, thanh hong, thanh thang
thong cong » trong cong, tong cong, thong thong
thong cap » thong cac, trung cap, thong cua
cap thong » cac thong, cap tong, chap thuong
cong tac » cong ty
van chat » cao chat
tac van » tac vang, cac van, tac va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien thanh) or (dieu hanh)) - thanh thong cap thong cong tac van chat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien thanh) OR (dieu hanh)) - thanh thong cap thong cong tac van chat.
• Adding a wildcard symbol may retrieve word variants: hoc ((thien thanh) or (dieu hanh)) - thanh thong cap thong cong tac van chat*.