Perhaps you should try some spelling variations:
chieu sang » chieu xanh, nhieu tang
chieu sach » chinh sach, chiet tach, chieu xanh
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
hieu lang » hieu quang, nhieu tang, hieu van
quan dong » quang dong, quan long, quan hoang
dong cong » duong cong, dung cong, dang cong
cong tac » cong ty
tac nhan » tao nhan, cac nhan, dac nhan
nhan cau » nhanh cau, phan cau, nhan sau

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 sang) or (chieu sach))) or (hieu lang)) - hanh trinh quan dong cong tac nhan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((((chieu sang) OR (chieu sach))) OR (hieu lang)) - hanh trinh quan dong cong tac nhan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((((chieu sang) or (chieu sach))) or (hieu lang)) - hanh trinh quan dong cong tac nhan cau*.