Perhaps you should try some spelling variations:
nhung phuong » dung phuong, nhu phuong, truong phuong
phuong bang » phuong hoang, phuong giang, phuong quang
chieu sang » chieu sach, chieu xanh, hieu lang
trinh quan » tinh quang, trinh han
bang toan » bong toan, dang toan, bang thanh
ho chieu » theo chieu, hoc thieu, doi chieu
toan cau » 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: ho chieu sang - hanh ((trinh quan) or (trinh luat)) nhung phuong bang toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sang - hanh ((trinh quan) OR (trinh luat)) nhung phuong bang toan cau.
• Adding a wildcard symbol may retrieve word variants: ho chieu sang - hanh ((trinh quan) or (trinh luat)) nhung phuong bang toan cau*.