Perhaps you should try some spelling variations:
hien nhanh » hien hanh, thien thanh, tien thanh
hoang manh » hoang minh, hoang anh, hoang xanh
dan thanh » dang thanh, danh thanh, ban thanh
cua hang » cua dang, cua cong, cua ban
cong dan » cong san, cong tan, huong dan
thanh tu » hanh tu, nhanh tu, thanh tung

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 - hoang manh ((cua hang) or (((cua nhung) or (va nhung)))) cong dan thanh tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc hien nhanh - hoang manh ((cua hang) OR (((cua nhung) OR (va nhung)))) cong dan thanh tu.
• Adding a wildcard symbol may retrieve word variants: hoc hien nhanh - hoang manh ((cua hang) or (((cua nhung) or (va nhung)))) cong dan thanh tu*.