Perhaps you should try some spelling variations:
thuong tuong » thuong truong, thuong luong, thuong trong
chieu sang » chieu sach, chieu xanh, hieu lang
tuong toan » truong toan, trong toan, tuong tac
doi chieu » doc hieu, doi chi, mot chieu
trinh han » trinh quan
toan phan » thanh phan, toan ban, hoa phan
han va » hang va, hanh va, nhan va

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sang - trinh han va thuong tuong toan phan tu~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sang - trinh han va thuong tuong toan phan tu*.