Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
toan tuan » tran tuan, toan quan, doan tuan
tuan dang » tran dang, tuan bang, tuan dung
dang song » nang song, dang cong, bang song
song hach » song hanh, song bach, song sach
hach toan » thanh toan, manh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: mot chieu sach - tinh toan tuan dang song hach toan ban~.
• Adding a wildcard symbol may retrieve word variants: mot chieu sach - tinh toan tuan dang song hach toan ban*.