Perhaps you should try some spelling variations:
thuong tong » thuong trong, thuong dong, tuong tong
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh quan » tinh quang, trinh luat
hoc chieu » hoc thieu, ho chieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh luan
tong tap » tuong tac, trong tan, cong tac
tap toan » tap doan, tap quan, bai 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: hoc chieu xanh - hanh ((trinh cua) or (((trinh quan) OR (trinh han)))) thuong tong tap toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh ((trinh cua) OR (((trinh quan) OR (trinh han)))) thuong tong tap toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - hanh ((trinh cua) or (((trinh quan) OR (trinh han)))) thuong tong tap toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh ((trinh cua) or (((trinh quan) OR (trinh han)))) thuong tong tap toan cao*.