Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh trinh » canh tranh, hanh chinh
trinh quan » tinh quang, trinh luat, trinh han
quan thong » quang thong, quan trong, xuan thong
thong dung » thong cong, thong thuong
dung tinh » dang tinh, dung ninh, dung tin
toan cau » 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: chao ((chieu sach) or (chieu tinh)) - hanh trinh quan thong dung tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chieu sach) OR (chieu tinh)) - hanh trinh quan thong dung tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: chao ((chieu sach) or (chieu tinh)) - hanh trinh quan thong dung tinh toan cau*.