Perhaps you should try some spelling variations:
chinh doanh » kinh doanh
hanh doanh » hang doanh, doanh doanh, kinh doanh
luan nang » luan van, van nang, luan san
nang cong » nang song, dang cong, bang cong
chi xanh » chi anh, chi danh, chi hanh
cong van » cong vang, cong san, song van
van phan » van phong, van thanh, luan phan
phan cac » nhan cach, phan dau, phan lap
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi xanh - ((hanh doanh) or (chinh doanh)) luan nang cong van phan cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - ((hanh doanh) OR (chinh doanh)) luan nang cong van phan cac*.