Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
hanh trinh » canh tranh, hanh chinh
trinh suat » trinh luat, trinh sat, trinh quan
suat trong » suat thong, luat trong, thuat trong
thien anh » thien danh, tien anh, thien thanh
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan ban » van ban

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "toc ((thieu xanh) OR (thien anh)) - hanh trinh suat trong cong tac toan ban~".
• Adding a wildcard symbol may retrieve word variants: toc ((thieu xanh) OR (thien anh)) - hanh trinh suat trong cong tac toan ban*.