Perhaps you should try some spelling variations:
quang phuong » bang phuong, dung phuong, hoang phuong
phuong cong » phuong dong, phong cong, phung cong
theo chieu » theo tieu, theo chu, thi chieu
dung quang » dang quang, dung quan, luong quang
hanh dung » thanh dung, anh dung, hanh dong
ho chieu » hoc thieu, doi chieu, mot chieu
van tuan » van quan, van ban, anh tuan
van tai » von tai

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