Perhaps you should try some spelling variations:
thien hach » thien thanh
thanh dung » thanh duong, thanh tung, thanh hung
thong cong » trong cong, tong cong, thong thong
hien hanh » dieu hanh
cua thong » cua thuong, cua khong, cua tong
dung cua » dung luan, dung cho
cong ban » cong bang, cong san, cong tan
toan cau » toan cao, toan ban, toan tai
toan tap » toan 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 ((thien hach) or (hien hanh)) - thanh dung cua thong cong ban ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien hach) OR (hien hanh)) - thanh dung cua thong cong ban ((toan cau) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: hoc ((thien hach) or (hien hanh)) - thanh dung cua thong cong ban ((toan cau) or (toan tap))*.