Perhaps you should try some spelling variations:
thuat thong » thuat trong, thuat tong, thuat tuong
tranh thuat » trong thuat, tranh chua, tranh thai
theo chieu » ho chieu, theo chu, thi chieu
thong cong » trong cong, tong cong, thong thong
hach toan » thanh toan, manh toan
tac toan » tap toan, tam toan, tich toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (theo tieu)) sach - canh tranh thuat thong cong ((tac toan) OR (hach toan)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo tieu)) sach - canh tranh thuat thong cong ((tac toan) OR (hach toan)) cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (theo tieu)) sach - canh tranh thuat thong cong ((tac toan) OR (hach toan)) cao".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo tieu)) sach - canh tranh thuat thong cong ((tac toan) OR (hach toan)) cao*.