Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
chau tinh » cuu tinh, ha tinh, cua tinh
hanh tang » hanh trang, anh tang, hanh mang
cua nhung » va nhung
chu tinh » chua tinh, cuu tinh, chu tich
tang cua » mang cua, hang cua, tang luan
cong tac » cong ty
toan cau » toan cao, toan ban, toan tap
tuan cu » tuan tu, quan cua, tuan thu

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi ((chu tinh) OR (chau tinh)) - hanh tang cua nhung cong tac ((toan cau) or (tuan cu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi ((chu tinh) OR (chau tinh)) - hanh tang cua nhung cong tac ((toan cau) OR (tuan cu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoi ((chu tinh) OR (chau tinh)) - hanh tang cua nhung cong tac ((toan cau) or (tuan cu))".
• Adding a wildcard symbol may retrieve word variants: hoi ((chu tinh) OR (chau tinh)) - hanh tang cua nhung cong tac ((toan cau) or (tuan cu))*.