Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
tuong cong » truong cong, trong cong, tong cong
doi chieu » doc hieu, doi chi, mot chieu
trinh han » trinh quan
va tuong » va thuong, va thong, xa truong
tung va » trung va, tuong va, dung va
han ban » hang ban, van ban, can ban

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 - thanh tung va tuong cong trinh han ban~.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - thanh tung va tuong cong trinh han ban*.