Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thuat cong » thuat song, thuat trong, thu cong
hieu manh » chieu xanh, hieu nganh, dieu hanh
luat canh » luat doanh, luat kinh, luc canh
cong tang » cong thang, cong tan, cong lang
tang quan » tang luan, nang quan, tong quan
hoc hieu » hoc thieu, hoc hien, doc hieu
quan ha » quan he

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 hieu manh - hanh trinh ((luat canh) OR (thuat cong)) cong tang quan ha~.
• Adding a wildcard symbol may retrieve word variants: hoc hieu manh - hanh trinh ((luat canh) or (thuat cong)) cong tang quan ha*.