Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, kieu tinh
chau tinh » cuu tinh, ha tinh, cua tinh
trang cua » tranh cua, trung cua, thang cua
tong cong » trong cong, cong cong, dung cong
tang cua » mang cua, hang cua, tang luan
cong tac » cong ty
tac doan » tap doan, tan doan, thai doan
doan cau » toan cau, doan dau, doan cap

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

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