Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, thien anh, thien danh
cong thanh » dong thanh, cong trinh, cong tan
thanh toan » thanh hoa, thanh san, tinh toan
hieu manh » chieu xanh, hieu nganh, dieu hanh
nang cong » nang song, dang cong, bang cong
tranh va » tranh van, trang va, trinh va
toan cao » toan ban, toan tap
va nang » van nang, da nang, cam nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu xanh) or (hieu manh)) - canh tranh va nang cong thanh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (hieu manh)) - canh tranh va nang cong thanh toan cao*.