Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hien manh » tien manh, hien nhanh, hien khanh
hieu manh » chieu xanh, hieu nganh, dieu hanh
hien hanh » dieu hanh
hang luan » tang luan, dung luan
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan cao » toan ban, toan tap
luan va » luan van, luat va

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 manh) OR (hieu manh))) or (hien hanh)) - hang luan va nhung cong san toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hien manh) OR (hieu manh))) OR (hien hanh)) - hang luan va nhung cong san toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((hien manh) OR (hieu manh))) or (hien hanh)) - hang luan va nhung cong san toan cao".
• Adding a wildcard symbol may retrieve word variants: hoc ((((hien manh) OR (hieu manh))) or (hien hanh)) - hang luan va nhung cong san toan cao*.