Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thieu xanh » chieu xanh, thien anh, thien danh
trinh suat » trinh luat, trinh sat, trinh quan
luong toan » luong thanh, truong toan, luong tin
hieu manh » chieu xanh, hieu nganh, dieu hanh
luong tai » dung tai, luong va

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - hanh trinh suat thong thong ((luong toan) OR (luong tai)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) or (hieu manh)) - hanh trinh suat thong thong ((luong toan) OR (luong tai)) cau~".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) or (hieu manh)) - hanh trinh suat thong thong ((luong toan) OR (luong tai)) cau*.