Perhaps you should try some spelling variations:
nhanh tinh » nhanh thanh, hanh trinh, nhan sinh
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
hoc vien » hoc hien, hoc viet, hoc tieng
tinh cua » trinh cua, sinh cua, tinh chat
dan toan » van toan, dan than, manh toan
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc vien bach - nhanh tinh cua ((hang cong) OR (dang cong)) dan toan tap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc vien bach - nhanh tinh cua ((hang cong) OR (dang cong)) dan toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc vien bach - nhanh tinh cua ((hang cong) OR (dang cong)) dan toan tap*.