Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, chien tranh
hien nhanh » tien thanh, dien thanh, vien nganh
hanh trung » thanh trung, hanh trang, manh trung
hien hanh » dieu hanh
trung cua » truong cua, trung tuan, trung cap
trong tap » trong thap, tong tap, trong tan
cua dung » cua dang, cua dong, qua dung
tap toan » tap doan, tap quan, bai toan
toan cau » 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) or (hien hanh))) or (thien thanh)) - hanh trung cua dung trong tap toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hien nhanh) OR (hien hanh))) OR (thien thanh)) - hanh trung cua dung trong tap toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((((hien nhanh) or (hien hanh))) or (thien thanh)) - hanh trung cua dung trong tap toan cau*.