Perhaps you should try some spelling variations:
trinh thuat » trinh luat, trinh thiet, trinh thuc
chieu xanh » chieu sach, chieu sang, chieu tinh
hanh trinh » canh tranh, hanh chinh
nhung cong » dung cong, thong cong, nhung don
hang cong » hang nong, bang cong, thanh cong
dang cong » dung cong
ho chieu » theo chieu, hoc thieu, doi chieu
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu xanh - hanh trinh thuat ((nhung cong) or (((hang cong) OR (dang cong)))) dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - hanh trinh thuat ((nhung cong) OR (((hang cong) OR (dang cong)))) dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - hanh trinh thuat ((nhung cong) or (((hang cong) OR (dang cong)))) dan toan cau".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - hanh trinh thuat ((nhung cong) or (((hang cong) OR (dang cong)))) dan toan cau*.