Perhaps you should try some spelling variations:
quang phuong » bang phuong, dung phuong, hoang phuong
phuong cong » phuong dong, phong cong, phung cong
chieu sach » chinh sach, chiet tach, chieu sang
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
ho chieu » theo chieu, hoc thieu, doi chieu
van than » van thanh, van thang, van tuan

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 sach - hanh tinh quang phuong cong ((tinh toan) or (van than)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh tinh quang phuong cong ((tinh toan) OR (van than)) cao.
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh tinh quang phuong cong ((tinh toan) or (van than)) cao*.