Perhaps you should try some spelling variations:
trinh ngang » trinh ngan, trinh nang, trinh nhung
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
nhanh mang » nhanh lang, hanh mang, nhanh quang
ngang tuan » quang tuan, hoang tuan, nganh toan
tuan chau » tran chau, chuan chau, thanh chau
ho chieu » theo chieu, hoc thieu, doi chieu

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - ((hanh trinh) OR (nhanh mang)) cua cong trinh ngang tuan chau~.
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - ((hanh trinh) or (nhanh mang)) cua cong trinh ngang tuan chau*.