Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
trong hiep » trong dieu
thong cong » trong cong, tong cong, thong thong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
trong he » trong le, trong nha, trong thu
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 - hanh ((trong he) or (trong hiep)) thong cong manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - hanh ((trong he) OR (trong hiep)) thong cong manh toan cao*.