Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hanh trinh » canh tranh, hanh chinh
thong cong » trong cong, tong cong, thong thong
trinh cua » tinh cua, trinh luat, trinh quan
cua thong » cua thuong, cua khong, cua tong
tac toan » tap toan, hach toan, tich toan
tam toan » tap toan, pham toan, tam thanh
tam than » ban than

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hien nhanh - hanh trinh cua thong cong ((tac toan) or (((tam toan) OR (tam than)))) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - hanh trinh cua thong cong ((tac toan) OR (((tam toan) OR (tam than)))) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc hien nhanh - hanh trinh cua thong cong ((tac toan) or (((tam toan) OR (tam than)))) cau".
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - hanh trinh cua thong cong ((tac toan) or (((tam toan) OR (tam than)))) cau*.