Perhaps you should try some spelling variations:
trong luong » trong tuong, thuong luong, trong thuong
chieu xanh » chieu sach, chieu sang, chieu tinh
trinh quan » tinh quang, trinh luat
ho chieu » theo chieu, hoc thieu, doi chieu
luong va » dung va
phan cau » phan dau, phan cac, phan tu
khan cap » khan ap, than cap, khoan cam

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: ho chieu xanh - canh ((trinh quan) OR (trinh han)) trong luong va ((phan cau) OR (khan cap))~.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - canh ((trinh quan) or (trinh han)) trong luong va ((phan cau) or (khan cap))*.