Perhaps you should try some spelling variations:
thang long » thanh cong
tieu tinh » trieu tinh, tieu trinh, lieu tinh
dung cong » dung trong
hach toan » thanh toan, manh toan
long vat » luong vat, dong vat, long van
vat dung » van dung, va dung, viet dung
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 tieu tinh - thang long vat dung cong ((tac toan) OR (hach toan)) cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu tinh - thang long vat dung cong ((tac toan) OR (hach toan)) cao".
• Adding a wildcard symbol may retrieve word variants: theo tieu tinh - thang long vat dung cong ((tac toan) OR (hach toan)) cao*.