Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau 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
ha tinh » va tinh, may tinh

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 (ha 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 (ha tinh)) - hanh ((trang cua) OR (tang cua)) tong cong tac doan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu tinh) or (ha tinh)) - hanh ((trang cua) or (tang cua)) tong cong tac doan cau*.