Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
trinh qua » trinh quan, trinh cua, trinh quang
trong dan » trong dang, trong san, trong tan
nhanh cay » nhanh ha, nhanh bac, nhanh va
qua dung » quang dung, su dung, qua song
than cau » toan cau, phan cau, than cap
khan ap » khan cap, han ap, khan dam

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: doi chieu xanh - hanh trinh qua dung trong dan ((than cau) OR (((khan ap) OR (nhanh cay))))~.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - hanh trinh qua dung trong dan ((than cau) or (((khan ap) or (nhanh cay))))*.