Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
luat dung » suat dung, luat chung, thuat dung
cong vang » cong lang, cong quang, cong ngang
cong van » cong san, song van, cong tan
phan cau » phan dau, phan cac, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chieu sach - hanh trinh luat dung ((cong van) or (cong vang)) ((phan cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trinh luat dung ((cong van) OR (cong vang)) ((phan cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trinh luat dung ((cong van) or (cong vang)) ((phan cau) or (phan tu))*.