Perhaps you should try some spelling variations:
trung thanh » truong thanh
chieu sach » chinh sach, chiet tach, chieu sang
trung tuan » trung tam, tran tuan, truong thanh
hang cong » dang cong, hang nong, bang cong
cong hach » cong sach, cong thanh, cong khanh
hach toan » thanh toan, manh toan
ho chieu » theo chieu, hoc thieu, doi chieu
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: ho chieu sach - hanh ((trung tuan) OR (trung thanh)) hang cong hach toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((trung tuan) OR (trung thanh)) hang cong hach toan cao".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((trung tuan) OR (trung thanh)) hang cong hach toan cao*.