Perhaps you should try some spelling variations:
trinh quang » tinh quang, trinh quan, tranh quang
hanh trinh » canh tranh, hanh chinh
kinh sach » sinh sach, dinh sach, tinh sach
bang cong » dang cong, bang song, hang cong
xuat phan » thuat phan, xuat nhap, luan phan
hoc kinh » hoc sinh, luoc kinh
phan cau » phan dau, phan cac, phan tu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc kinh sach - hanh trinh quang ((thanh cong) or (bang cong)) xuat phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc kinh sach - hanh trinh quang ((thanh cong) OR (bang cong)) xuat phan cau.
• Adding a wildcard symbol may retrieve word variants: hoc kinh sach - hanh trinh quang ((thanh cong) or (bang cong)) xuat phan cau*.