Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
thanh tung » thanh cong
nhung lang » nhung van, nhanh lang, nhung cong
thong cong » trong cong, tong cong, thong thong
dang cong » dung cong
tung cua » trung cua, tuong cua, dung cua
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

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 - thanh tung cua ((((nhung lang) or (thong cong))) or (dang cong)) tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - thanh tung cua ((((nhung lang) OR (thong cong))) OR (dang cong)) tac toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - thanh tung cua ((((nhung lang) or (thong cong))) or (dang cong)) tac toan cao*.