Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
theo chieu » theo tieu, ho chieu, thi chieu
nhung cong » dung cong, thong cong, hang cong
cong quang » luong quang, thong quang, duong quang
quang toan » quang tuan, quang tran, quang doan
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
theo chu » cho chu, chao chu, theo yeu
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: ((theo chieu) or (theo chu)) tinh - hanh trinh cua nhung cong quang toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo chu)) tinh - hanh trinh cua nhung cong quang toan cao.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo chu)) tinh - hanh trinh cua nhung cong quang toan cao*.