Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
trung phat » truong phat, trong phat, trung phan
nhung cong » dung cong, thong cong, hang cong
trung pha » trung phan, trung ha, truong phan
cong san » cong tac
san than » sang than, san thanh, ban than
than cau » toan cau, phan cau, than cap

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 - manh ((trung pha) or (trung phat)) nhung cong san than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - manh ((trung pha) OR (trung phat)) nhung cong san than cau.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - manh ((trung pha) or (trung phat)) nhung cong san than cau*.