Perhaps you should try some spelling variations:
chieu sang » chieu sach, chieu xanh, hieu lang
thong cong » trong cong, tong cong, thong thong
hoi chieu » doi chieu, ho chieu, hai chieu
trinh cua » tinh cua, trinh luat, trinh quan
trinh han » trinh quan
cong hach » cong sach, cong thanh, cong khanh
hach toan » thanh toan, manh toan
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: hoi chieu sang - hanh ((trinh cua) or (trinh han)) thong cong hach toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi chieu sang - hanh ((trinh cua) OR (trinh han)) thong cong hach toan cao.
• Adding a wildcard symbol may retrieve word variants: hoi chieu sang - hanh ((trinh cua) or (trinh han)) thong cong hach toan cao*.