Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
nhanh mang » hanh mang, nhanh quang, nhanh thang
nhanh lang » nhanh quang, nhanh thang, nhan dang
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
cong tac » cong ty
tran cau » tran chau, ran cau, tra cau
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tinh - ((nhanh mang) or (nhanh lang)) cua thong cong tac ((tran cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - ((nhanh mang) OR (nhanh lang)) cua thong cong tac ((tran cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - ((nhanh mang) or (nhanh lang)) cua thong cong tac ((tran cau) or (toan cau))*.