Perhaps you should try some spelling variations:
thanh thong » thanh thuong, thanh hong, thanh thang
chieu sach » chinh sach, chiet tach, chieu sang
trong doan » trong doanh, trong dan, trong hoan
ho chieu » theo chieu, hoc thieu, doi chieu
thong su » thong tu, thong cua, thong qua
phan cau » phan dau, phan tu, phan lap
phan cac » nhan cach, phan dau, 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: ho chieu sach - thanh thong su dung trong doan ((phan cau) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh thong su dung trong doan ((phan cau) OR (phan cac)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh thong su dung trong doan ((phan cau) or (phan cac))*.