Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thong cong » trong cong, tong cong, thong thong
doi chieu » doc hieu, doi chi, ho chieu
cdinh cua » chinh cua, dinh cuu, sinh cua
manh toan » thanh toan, anh tuan, tinh toan
dinh cua » dinh cuu, sinh cua, dinh cu
van tuan » van quan, van ban, anh tuan

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: doi chieu xanh - hanh ((cdinh cua) OR (dinh cua)) thong cong ((manh toan) OR (van tuan)) cau~.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh ((cdinh cua) or (dinh cua)) thong cong ((manh toan) or (van tuan)) cau*.