Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
chieu sach » chinh sach, chiet tach, chieu sang
thanh toan » thanh hoa, thanh san, tinh toan
hach toan » manh toan
ho chieu » theo chieu, hoc thieu, doi chieu
mang cua » manh cua, ban cua, cong cua
dung cua » dung luan, dung cho

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 ((mang cua) or (dung cua)) thong cong ((hach toan) OR (thanh toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh ((mang cua) OR (dung cua)) thong cong ((hach toan) OR (thanh toan)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh ((mang cua) or (dung cua)) thong cong ((hach toan) OR (thanh toan)) tap".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh ((mang cua) or (dung cua)) thong cong ((hach toan) OR (thanh toan)) tap*.