Perhaps you should try some spelling variations:
tieu tinh » trieu tinh, tieu trinh, lieu tinh
nang hang » nang sang, hang hang, cang thang
dang cong » dung cong
hang cua » mang cua, hang ca, huong cua
cua dang » cua cong, cua ban
tac toan » tam toan, hach toan, tich toan
tap toan » tap doan, tap quan, bai 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 tieu tinh - nang hang cua dang cong ((tac toan) OR (tap toan)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu tinh - nang hang cua dang cong ((tac toan) OR (tap toan)) cau".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - nang hang cua dang cong ((tac toan) OR (tap toan)) cau*.