Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu tinh, hieu manh
chieu sang » chieu sach, hieu lang, nhieu tang
bang cong » dang cong, bang song, hang cong
cong tinh » cong trinh, cong vinh, long tinh
nhan cua » nhat cua, nhan luc, nhan su
toan cao » toan ban, toan tap
han cua » hang cua, than cua, hanh cua

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: theo ((chieu xanh) OR (chieu sang)) - hanh ((han cua) OR (nhan cua)) bang cong tinh toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu xanh) or (chieu sang)) - hanh ((han cua) OR (nhan cua)) bang cong tinh toan cao~".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu xanh) or (chieu sang)) - hanh ((han cua) OR (nhan cua)) bang cong tinh toan cao*.