Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hoc thieu » hoc hien
hanh tang » hanh trang, anh tang, hanh mang
cua thong » cua thuong, cua khong, cua tong
tang cua » mang cua, hang cua, tang luan
cong tac » cong ty
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap

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 thieu) OR (toc thieu)) tinh - hanh tang cua thong cong tac ((toan cau) OR (toan cao))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) OR (toc thieu)) tinh - hanh tang cua thong cong tac ((toan cau) or (toan cao))~".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) OR (toc thieu)) tinh - hanh tang cua thong cong tac ((toan cau) or (toan cao))*.