Perhaps you should try some spelling variations:
thanh trung » thanh tung
thong cong » trong cong, tong cong, thong thong
bien tinh » bi tinh, yen tinh, ban tinh
trung cap » truong cao, trung tam
cap thong » cap tong, chap thuong, phap thong
cong tac » cong ty
toan cau » toan cao, toan tap, toan tai
toan ban » van 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 ((bien tinh) or (diep tinh)) - thanh trung cap thong cong tac ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((bien tinh) OR (diep tinh)) - thanh trung cap thong cong tac ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((bien tinh) or (diep tinh)) - thanh trung cap thong cong tac ((toan cau) or (toan ban))*.